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On December 7–8, 1941, Japanese forces carried out surprise attacks on Pearl Harbor, attacks on British forces in Malaya, Singapore, and Hong Kong and declared war, bringing the US and the UK into World War II in the Pacific.<br/><br/>

After the Soviet invasion of Manchuria and the atomic bombings of Hiroshima and Nagasaki in 1945, Japan agreed to an unconditional surrender on August 15. The war cost Japan and the rest of the Greater East Asia Co-Prosperity Sphere millions of lives and left much of the nation's industry and infrastructure destroyed.
Zuikaku ('Auspicious Crane') was a Shokaku-class aircraft carrier of the Imperial Japanese Navy. Her complement of aircraft took part in the attack on Pearl Harbor that formally brought the United States into the Pacific War, and she fought in several of the most important naval battles of the war, before being sunk during the Battle of Leyte Gulf.<br/><br/>

One of six carriers to participate in the Pearl Harbor attack, Zuikaku was the last of the six to be sunk in the war (four in the Battle of Midway and Shokaku in the Battle of the Philippine Sea).
Kaga was an aircraft carrier built for the Imperial Japanese Navy (IJN) and was named after the former Kaga Province in present-day Ishikawa Prefecture. Originally intended to be one of two Tosa-class battleships, Kaga was converted under the terms of the Washington Naval Treaty to an aircraft carrier as the replacement for the battlecruiser Amagi, which had been damaged during the 1923 Great Kanto earthquake. Kaga was rebuilt in 1933–35, increasing her top speed, improving her exhaust systems, and adapting her flight decks to more modern, heavier aircraft.<br/><br/>

Kaga's aircraft first supported Japanese troops in China during the Shanghai Incident of 1932 and participated in the Second Sino-Japanese War in the late 1930s. With other carriers, she took part in the Pearl Harbor raid in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month her aircraft participated in a combined carrier airstrike on Darwin, Australia, helping secure the conquest of the Dutch East Indies by Japanese forces.<br/><br/>

Following repairs, Kaga rejoined the 1st Air Fleet for the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, Kaga and three other IJN carriers were attacked by American aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Kaga; when it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands.<br/><br/>

The loss of four large attack carriers, including Kaga at Midway, was a crucial setback for Japan, and contributed significantly to Japan's ultimate defeat. In 1999, debris from Kaga including a large section of the hull was located on the ocean floor at a depth in excess of 5,000 meters (16,404 ft); 350 miles (560 km) northwest of Midway Island. The main part of the carrier's wreck has not been found.
Akagi was an aircraft carrier built for the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an Amagi-class battlecruiser, Akagi was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval Treaty. The ship was rebuilt from 1935 to 1938 with her original three flight decks consolidated into a single enlarged flight deck and an island superstructure.<br/><br/>

Akagi's aircraft served in the Second Sino-Japanese War in the late 1930s. Upon the formation of the First Air Fleet or Kido Butai (Striking Force) in early 1941, she became its flagship, and remained so for the duration of her service. With other fleet carriers, she took part in the Attack on Pearl Harbor in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month, her aircraft bombed Darwin, Australia, and assisted in the conquest of the Dutch East Indies. In March and April 1942, Akagi's aircraft helped sink a British heavy cruiser and an Australian destroyer in the Indian Ocean Raid.<br/><br/>

After a brief refit, Akagi and three other fleet carriers of the Kido Butai participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, Akagi and the other carriers were attacked by aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Akagi. When it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands. The loss of Akagi and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
Shokaku ('Soaring Crane') was an aircraft carrier of the Imperial Japanese Navy, the lead ship of her class. Along with her sister ship Zuikaku, she took part in several key naval battles during the Pacific War, including the attack on Pearl Harbor, the Battle of the Coral Sea and the Battle of the Santa Cruz Islands before being torpedoed and sunk by a U.S. submarine at the Battle of the Philippine Sea.
Hiryu ('Flying Dragon') was an aircraft carrier built for the Imperial Japanese Navy (IJN) during the 1930s. The only ship of her class, she was built to a modified Soryu design. Her aircraft supported the Japanese invasion of French Indochina in mid-1940. During the first month of the Pacific War, she took part in the attack on Pearl Harbor and the Battle of Wake Island. The ship supported the conquest of the Dutch East Indies in January 1942. The following month, her aircraft bombed Darwin, Australia, and continued to assist in the Dutch East Indies campaign. In April, Hiryu's aircraft helped sink two British heavy cruisers and several merchant ships during the Indian Ocean raid.<br/><br/>

After a brief refit, Hiryu and three other fleet carriers of the First Air Fleet (Kido Butai) participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, the carriers were attacked by aircraft from Midway and the carriers USS Enterprise, Hornet, and Yorktown. Dive bombers from Yorktown and Enterprise crippled Hiryu and set her afire. She was scuttled the following day after it became clear that she could not be salvaged. The loss of Hiryu and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
The Imperial Japanese Navy aircraft carrier Akagi was constructed between 1920 and 1927, and served between 1927 and 1942.<br/><br/>

The Akagi participated in the attack on Pearl Harbour in December 1941, and was sunk at the Battle of Midway in June 1942.
Zuikaku ('Auspicious Crane') was a Shokaku-class aircraft carrier of the Imperial Japanese Navy. Her complement of aircraft took part in the attack on Pearl Harbor that formally brought the United States into the Pacific War, and she fought in several of the most important naval battles of the war, before being sunk during the Battle of Leyte Gulf.<br/><br/>

One of six carriers to participate in the Pearl Harbor attack, Zuikaku was the last of the six to be sunk in the war (four in the Battle of Midway and Shokaku in the Battle of the Philippine Sea).
Kaga was an aircraft carrier built for the Imperial Japanese Navy (IJN) and was named after the former Kaga Province in present-day Ishikawa Prefecture. Originally intended to be one of two Tosa-class battleships, Kaga was converted under the terms of the Washington Naval Treaty to an aircraft carrier as the replacement for the battlecruiser Amagi, which had been damaged during the 1923 Great Kanto earthquake. Kaga was rebuilt in 1933–35, increasing her top speed, improving her exhaust systems, and adapting her flight decks to more modern, heavier aircraft.<br/><br/>

Kaga's aircraft first supported Japanese troops in China during the Shanghai Incident of 1932 and participated in the Second Sino-Japanese War in the late 1930s. With other carriers, she took part in the Pearl Harbor raid in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month her aircraft participated in a combined carrier airstrike on Darwin, Australia, helping secure the conquest of the Dutch East Indies by Japanese forces.<br/><br/>

Following repairs, Kaga rejoined the 1st Air Fleet for the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, Kaga and three other IJN carriers were attacked by American aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Kaga; when it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands.<br/><br/>

The loss of four large attack carriers, including Kaga at Midway, was a crucial setback for Japan, and contributed significantly to Japan's ultimate defeat. In 1999, debris from Kaga including a large section of the hull was located on the ocean floor at a depth in excess of 5,000 meters (16,404 ft); 350 miles (560 km) northwest of Midway Island. The main part of the carrier's wreck has not been found.
Akagi was an aircraft carrier built for the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an Amagi-class battlecruiser, Akagi was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval Treaty. The ship was rebuilt from 1935 to 1938 with her original three flight decks consolidated into a single enlarged flight deck and an island superstructure.<br/><br/>

Akagi's aircraft served in the Second Sino-Japanese War in the late 1930s. Upon the formation of the First Air Fleet or Kido Butai (Striking Force) in early 1941, she became its flagship, and remained so for the duration of her service. With other fleet carriers, she took part in the Attack on Pearl Harbor in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month, her aircraft bombed Darwin, Australia, and assisted in the conquest of the Dutch East Indies. In March and April 1942, Akagi's aircraft helped sink a British heavy cruiser and an Australian destroyer in the Indian Ocean Raid.<br/><br/>

After a brief refit, Akagi and three other fleet carriers of the Kido Butai participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, Akagi and the other carriers were attacked by aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Akagi. When it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands. The loss of Akagi and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
Soryu ('Blue Dragon') was an aircraft carrier built for the Imperial Japanese Navy (IJN) during the mid-1930s. Soryu's aircraft were employed in operations during the Second Sino-Japanese War in the late 1930s and supported the Japanese invasion of French Indochina in mid-1940. During the first months of the Pacific War, she took part in the attack on Pearl Harbor, the Battle of Wake Island, and supported the conquest of the Dutch East Indies. In February 1942, her aircraft bombed Darwin, Australia, and she continued on to assist in the Dutch East Indies campaign. In April, Soryu's aircraft helped sink two British heavy cruisers and several merchant ships during the Indian Ocean raid.<br/><br/>

After a brief refit, Soryu and three other carriers of the 1st Air Fleet (Kido Butai) participated in the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, the carriers were attacked by aircraft from the island and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Yorktown crippled Soryu and set her afire. Japanese destroyers rescued the survivors but the ship could not be salvaged and was ordered to be scuttled so as to allow her attendant destroyers to be released for further operations. She sank with the loss of 711 officers and enlisted men of the 1,103 aboard. The loss of Soryu and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
Hiryu ('Flying Dragon') was an aircraft carrier built for the Imperial Japanese Navy (IJN) during the 1930s. The only ship of her class, she was built to a modified Soryu design. Her aircraft supported the Japanese invasion of French Indochina in mid-1940. During the first month of the Pacific War, she took part in the attack on Pearl Harbor and the Battle of Wake Island. The ship supported the conquest of the Dutch East Indies in January 1942. The following month, her aircraft bombed Darwin, Australia, and continued to assist in the Dutch East Indies campaign. In April, Hiryu's aircraft helped sink two British heavy cruisers and several merchant ships during the Indian Ocean raid.<br/><br/>

After a brief refit, Hiryu and three other fleet carriers of the First Air Fleet (Kido Butai) participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, the carriers were attacked by aircraft from Midway and the carriers USS Enterprise, Hornet, and Yorktown. Dive bombers from Yorktown and Enterprise crippled Hiryu and set her afire. She was scuttled the following day after it became clear that she could not be salvaged. The loss of Hiryu and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
The Imperial Japanese Navy aircraft carrier Hiryu was constructed between 1936 and 1939, and served between 1939 and 1942.<br/><br/>

The Hiryu participated in the attack on Pearl Harbour in December 1941, and was sunk at the Battle of Midway in June 1942.
Kaga was an aircraft carrier built for the Imperial Japanese Navy (IJN) and was named after the former Kaga Province in present-day Ishikawa Prefecture. Originally intended to be one of two Tosa-class battleships, Kaga was converted under the terms of the Washington Naval Treaty to an aircraft carrier as the replacement for the battlecruiser Amagi, which had been damaged during the 1923 Great Kanto earthquake. Kaga was rebuilt in 1933–35, increasing her top speed, improving her exhaust systems, and adapting her flight decks to more modern, heavier aircraft.<br/><br/>

Kaga's aircraft first supported Japanese troops in China during the Shanghai Incident of 1932 and participated in the Second Sino-Japanese War in the late 1930s. With other carriers, she took part in the Pearl Harbor raid in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month her aircraft participated in a combined carrier airstrike on Darwin, Australia, helping secure the conquest of the Dutch East Indies by Japanese forces.<br/><br/>

Following repairs, Kaga rejoined the 1st Air Fleet for the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, Kaga and three other IJN carriers were attacked by American aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Kaga; when it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands.<br/><br/>

The loss of four large attack carriers, including Kaga at Midway, was a crucial setback for Japan, and contributed significantly to Japan's ultimate defeat. In 1999, debris from Kaga including a large section of the hull was located on the ocean floor at a depth in excess of 5,000 meters (16,404 ft); 350 miles (560 km) northwest of Midway Island. The main part of the carrier's wreck has not been found.
Akagi was an aircraft carrier built for the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an Amagi-class battlecruiser, Akagi was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval Treaty. The ship was rebuilt from 1935 to 1938 with her original three flight decks consolidated into a single enlarged flight deck and an island superstructure.<br/><br/>

Akagi's aircraft served in the Second Sino-Japanese War in the late 1930s. Upon the formation of the First Air Fleet or Kido Butai (Striking Force) in early 1941, she became its flagship, and remained so for the duration of her service. With other fleet carriers, she took part in the Attack on Pearl Harbor in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month, her aircraft bombed Darwin, Australia, and assisted in the conquest of the Dutch East Indies. In March and April 1942, Akagi's aircraft helped sink a British heavy cruiser and an Australian destroyer in the Indian Ocean Raid.<br/><br/>

After a brief refit, Akagi and three other fleet carriers of the Kido Butai participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, Akagi and the other carriers were attacked by aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Akagi. When it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands. The loss of Akagi and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
Hakodate is a city and port located in Oshima Subprefecture, Hokkaido, Japan. It is the capital city of Oshima Subprefecture.<br/><br/>

Hakodate escaped most of the ravages of World War II. The city was subjected to two Allied bombing raids on 14 and 15 July 1945. Around 400 homes were destroyed on the western side of Hakodate-yama and an Aomori-Hakodate ferry was attacked with 400 passengers killed.
Soryu ('Blue Dragon') was an aircraft carrier built for the Imperial Japanese Navy (IJN) during the mid-1930s. Soryu's aircraft were employed in operations during the Second Sino-Japanese War in the late 1930s and supported the Japanese invasion of French Indochina in mid-1940. During the first months of the Pacific War, she took part in the attack on Pearl Harbor, the Battle of Wake Island, and supported the conquest of the Dutch East Indies. In February 1942, her aircraft bombed Darwin, Australia, and she continued on to assist in the Dutch East Indies campaign. In April, Soryu's aircraft helped sink two British heavy cruisers and several merchant ships during the Indian Ocean raid.<br/><br/>

After a brief refit, Soryu and three other carriers of the 1st Air Fleet (Kido Butai) participated in the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, the carriers were attacked by aircraft from the island and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Yorktown crippled Soryu and set her afire. Japanese destroyers rescued the survivors but the ship could not be salvaged and was ordered to be scuttled so as to allow her attendant destroyers to be released for further operations. She sank with the loss of 711 officers and enlisted men of the 1,103 aboard. The loss of Soryu and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
Hiryu ('Flying Dragon') was an aircraft carrier built for the Imperial Japanese Navy (IJN) during the 1930s. The only ship of her class, she was built to a modified Soryu design. Her aircraft supported the Japanese invasion of French Indochina in mid-1940. During the first month of the Pacific War, she took part in the attack on Pearl Harbor and the Battle of Wake Island. The ship supported the conquest of the Dutch East Indies in January 1942. The following month, her aircraft bombed Darwin, Australia, and continued to assist in the Dutch East Indies campaign. In April, Hiryu's aircraft helped sink two British heavy cruisers and several merchant ships during the Indian Ocean raid.<br/><br/>

After a brief refit, Hiryu and three other fleet carriers of the First Air Fleet (Kido Butai) participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, the carriers were attacked by aircraft from Midway and the carriers USS Enterprise, Hornet, and Yorktown. Dive bombers from Yorktown and Enterprise crippled Hiryu and set her afire. She was scuttled the following day after it became clear that she could not be salvaged. The loss of Hiryu and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
The Imperial Japanese Navy aircraft carrier Shokaku was constructed between 1937 and 1939, and served between 1927 and 1944.<br/><br/>

The Shokaku participated in the attack on Pearl Harbour in December 1941, and was sunk at the Battle of the Philippine Sea in 1944.
Kaga was an aircraft carrier built for the Imperial Japanese Navy (IJN) and was named after the former Kaga Province in present-day Ishikawa Prefecture. Originally intended to be one of two Tosa-class battleships, Kaga was converted under the terms of the Washington Naval Treaty to an aircraft carrier as the replacement for the battlecruiser Amagi, which had been damaged during the 1923 Great Kanto earthquake. Kaga was rebuilt in 1933–35, increasing her top speed, improving her exhaust systems, and adapting her flight decks to more modern, heavier aircraft.<br/><br/>

Kaga's aircraft first supported Japanese troops in China during the Shanghai Incident of 1932 and participated in the Second Sino-Japanese War in the late 1930s. With other carriers, she took part in the Pearl Harbor raid in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month her aircraft participated in a combined carrier airstrike on Darwin, Australia, helping secure the conquest of the Dutch East Indies by Japanese forces.<br/><br/>

Following repairs, Kaga rejoined the 1st Air Fleet for the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, Kaga and three other IJN carriers were attacked by American aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Kaga; when it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands.<br/><br/>

The loss of four large attack carriers, including Kaga at Midway, was a crucial setback for Japan, and contributed significantly to Japan's ultimate defeat. In 1999, debris from Kaga including a large section of the hull was located on the ocean floor at a depth in excess of 5,000 meters (16,404 ft); 350 miles (560 km) northwest of Midway Island. The main part of the carrier's wreck has not been found.
Akagi was an aircraft carrier built for the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an Amagi-class battlecruiser, Akagi was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval Treaty. The ship was rebuilt from 1935 to 1938 with her original three flight decks consolidated into a single enlarged flight deck and an island superstructure.<br/><br/>

Akagi's aircraft served in the Second Sino-Japanese War in the late 1930s. Upon the formation of the First Air Fleet or Kido Butai (Striking Force) in early 1941, she became its flagship, and remained so for the duration of her service. With other fleet carriers, she took part in the Attack on Pearl Harbor in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month, her aircraft bombed Darwin, Australia, and assisted in the conquest of the Dutch East Indies. In March and April 1942, Akagi's aircraft helped sink a British heavy cruiser and an Australian destroyer in the Indian Ocean Raid.<br/><br/>

After a brief refit, Akagi and three other fleet carriers of the Kido Butai participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, Akagi and the other carriers were attacked by aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Akagi. When it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands. The loss of Akagi and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
On December 7–8, 1941, Japanese forces carried out surprise attacks on Pearl Harbor, attacks on British forces in Malaya, Singapore, and Hong Kong and declared war, bringing the US and the UK into World War II in the Pacific.<br/><br/>

After the Soviet invasion of Manchuria and the atomic bombings of Hiroshima and Nagasaki in 1945, Japan agreed to an unconditional surrender on August 15. The war cost Japan and the rest of the Greater East Asia Co-Prosperity Sphere millions of lives and left much of the nation's industry and infrastructure destroyed.
Soryu ('Blue Dragon') was an aircraft carrier built for the Imperial Japanese Navy (IJN) during the mid-1930s. Soryu's aircraft were employed in operations during the Second Sino-Japanese War in the late 1930s and supported the Japanese invasion of French Indochina in mid-1940. During the first months of the Pacific War, she took part in the attack on Pearl Harbor, the Battle of Wake Island, and supported the conquest of the Dutch East Indies. In February 1942, her aircraft bombed Darwin, Australia, and she continued on to assist in the Dutch East Indies campaign. In April, Soryu's aircraft helped sink two British heavy cruisers and several merchant ships during the Indian Ocean raid.<br/><br/>

After a brief refit, Soryu and three other carriers of the 1st Air Fleet (Kido Butai) participated in the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, the carriers were attacked by aircraft from the island and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Yorktown crippled Soryu and set her afire. Japanese destroyers rescued the survivors but the ship could not be salvaged and was ordered to be scuttled so as to allow her attendant destroyers to be released for further operations. She sank with the loss of 711 officers and enlisted men of the 1,103 aboard. The loss of Soryu and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
Kaga was an aircraft carrier built for the Imperial Japanese Navy (IJN) and was named after the former Kaga Province in present-day Ishikawa Prefecture. Originally intended to be one of two Tosa-class battleships, Kaga was converted under the terms of the Washington Naval Treaty to an aircraft carrier as the replacement for the battlecruiser Amagi, which had been damaged during the 1923 Great Kanto earthquake. Kaga was rebuilt in 1933–35, increasing her top speed, improving her exhaust systems, and adapting her flight decks to more modern, heavier aircraft.<br/><br/>

Kaga's aircraft first supported Japanese troops in China during the Shanghai Incident of 1932 and participated in the Second Sino-Japanese War in the late 1930s. With other carriers, she took part in the Pearl Harbor raid in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month her aircraft participated in a combined carrier airstrike on Darwin, Australia, helping secure the conquest of the Dutch East Indies by Japanese forces.<br/><br/>

Following repairs, Kaga rejoined the 1st Air Fleet for the Battle of Midway in June 1942. After bombarding American forces on Midway Atoll, Kaga and three other IJN carriers were attacked by American aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Kaga; when it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands.<br/><br/>

The loss of four large attack carriers, including Kaga at Midway, was a crucial setback for Japan, and contributed significantly to Japan's ultimate defeat. In 1999, debris from Kaga including a large section of the hull was located on the ocean floor at a depth in excess of 5,000 meters (16,404 ft); 350 miles (560 km) northwest of Midway Island. The main part of the carrier's wreck has not been found.
The Imperial Japanese Navy aircraft carrier Soryu was constructed between 1934 and 1937, and served between 1927 and 1942.<br/><br/>

The Soryu participated in the attack on Pearl Harbour in December 1941, and was sunk at the Battle of Midway in June 1942.
Shokaku ('Soaring Crane') was an aircraft carrier of the Imperial Japanese Navy, the lead ship of her class. Along with her sister ship Zuikaku, she took part in several key naval battles during the Pacific War, including the attack on Pearl Harbor, the Battle of the Coral Sea and the Battle of the Santa Cruz Islands before being torpedoed and sunk by a U.S. submarine at the Battle of the Philippine Sea.
Akagi was an aircraft carrier built for the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an Amagi-class battlecruiser, Akagi was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval Treaty. The ship was rebuilt from 1935 to 1938 with her original three flight decks consolidated into a single enlarged flight deck and an island superstructure.<br/><br/>

Akagi's aircraft served in the Second Sino-Japanese War in the late 1930s. Upon the formation of the First Air Fleet or Kido Butai (Striking Force) in early 1941, she became its flagship, and remained so for the duration of her service. With other fleet carriers, she took part in the Attack on Pearl Harbor in December 1941 and the invasion of Rabaul in the Southwest Pacific in January 1942. The following month, her aircraft bombed Darwin, Australia, and assisted in the conquest of the Dutch East Indies. In March and April 1942, Akagi's aircraft helped sink a British heavy cruiser and an Australian destroyer in the Indian Ocean Raid.<br/><br/>

After a brief refit, Akagi and three other fleet carriers of the Kido Butai participated in the Battle of Midway in June 1942. After bombarding American forces on the atoll, Akagi and the other carriers were attacked by aircraft from Midway and the carriers Enterprise, Hornet, and Yorktown. Dive bombers from Enterprise severely damaged Akagi. When it became obvious she could not be saved, she was scuttled by Japanese destroyers to prevent her from falling into enemy hands. The loss of Akagi and three other IJN carriers at Midway was a crucial strategic defeat for Japan and contributed significantly to the Allies' ultimate victory in the Pacific.
The Battle of Okinawa, codenamed Operation Iceberg, was a series of battles fought in the Ryukyu Islands, centered on the island of Okinawa, and included the largest amphibious assault in the Pacific War.The 82-day-long battle lasted from 1 April until 22 June 1945.<br/><br/>

The Battle of Okinawa was remarkable for the ferocity of the fighting, the intensity of kamikaze attacks from the Japanese defenders, and the great number of Allied ships and armored vehicles that assaulted the island. The battle was one of the bloodiest in the Pacific.
Shinano (信濃)?), named after the ancient Shinano Province, was an aircraft carrier of the Imperial Japanese Navy during World War II. Initially laid down as the third of the Yamato-class battleships, Shinano's partially complete hull was converted to an aircraft carrier in 1942, midway through construction. Over the next two years, Shinano was heavily modified to act as a large support carrier. When completed, she had a full-load displacement of 72,000 long tons (73,000 t), the largest aircraft carrier ever built at the time.<br/><br/>

Commissioned in November 1944, Shinano was to transfer from the Yokosuka Naval Shipyard to Kure Naval Base to complete her outfitting and transfer a load of 100 Yokosuka MXY7 Ohka rocket-propelled kamikaze aircraft. While en route, Shinano was sunk by the American submarine USS Archer-Fish 10 days after her commissioning by only 4 torpedoes, because no pumps and underwater doors were installed yet.