5th Carrier Division
The Shokaku and Zuikaku made up the 5th Carrier Division.
Attack on Pearl Harbor
During the attack on Pearl Harbor the Shokaku carried 18 Zero fighters, 27 Val dive bombers, and 27 Kate torpedo bombers. The Shokaku and Zuikaku were both new ships with inexperienced crews so their aircraft were given limited roles.
Shokaku and Zuikaku each carried 21 Zero fighters, 21 Val dive bombers, and 21 Kate torpedo bombers. The Shokaku sustained two / three bomb hits and was out of action for two months and missed the Battle of Midway.
Zuikaku's air groups suffered heavy losses and missed the Battle of Midway.
Battle of Eastern Solomons
Shokaku carried 26 Zero fighters, 14 Val dive bombers, 18 Kate torpedo bombers and 1 observation plane.Zuikaku carried 27 Zero fighters, 27 Val dive bombers, 27 Kate torpedo bombers and 1 observation plane.
The Shokaku suffered damage from a single hit from a dive bomber from the USS Hornet. Aircraft from the Shokaku damaged the USS Enterprise.
Battle of Santa Cruz Islands
Zuikaku carried 27 Zero fighters, 27 Val dive bombers, 27 Kate torpedo bombers and 1 observation plane. Aircraft from the Zuikaku sank the USS Hornet and damaged the USS Enterprise.
The Shokaku was damaged by four / six 1,000 lb bombs and went under repairs and modification at Kure for five months.
Battle of the Philippine Sea
The Shokaku was sunk. She sustained three /four torpedo hits from the USS Cavalla which caused an explosion from the fuel tanks. 1,272 of her crew went down with her.
The Zuikaku was set on fire by several bombs and returned to Kure for repairs.
Battle of Leyte Gulf
The Zuikaku was sunk. She was hit by seven / nine bombs and six / seven torpedos.