1st Air Fleet (Imperial Japanese Navy)

The 1st Air Fleet (第一航空艦隊 Daiichi Kōkū Kantai) formed the primary carrier fleet of the Imperial Japanese Navy (IJN), a grouping of naval aircraft and aircraft carriers that at the time of the attack on Pearl Harbor, was the world's largest aircraft carrier fleet. With the Kidō Butai as its primary carrier battle group, the IJN would reign supreme for the first six months of America's entry to World War II.

1st Air Fleet (Imperial Japanese Navy)

The 1st Air Fleet (第一航空艦隊 Daiichi Kōkū Kantai) formed the primary carrier fleet of the Imperial Japanese Navy (IJN), a grouping of naval aircraft and aircraft carriers that at the time of the attack on Pearl Harbor, was the world's largest aircraft carrier fleet. With the Kidō Butai as its primary carrier battle group, the IJN would reign supreme for the first six months of America's entry to World War II.