What was a decisive naval battle in the Pacifix Theater of WW2 that "Zuihō" played a secondary role in?
Battle of Midway The Battle of Midway was a decisive naval battle in the Pacific Theater of World War II which occurred between 4 and 7 June 1942, only six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea. The United States Navy under Admirals Chester Nimitz, Frank Jack Fletcher, and Raymond A. Spruance defeated an attacking fleet of the Imperial Japanese Navy under Admirals Isoroku Yamamoto, Chuichi Nagumo, and Nobutake Kondo near Midway Atoll, inflicting devastating damage on the Japanese fleet that proved irreparable. Military historian John Keegan called it "the most stunning and decisive blow in the history of naval warfare."
Ryojun Guard District The Ryojun Guard District (旅順要港部 , Ryojun Yōkōbu ) was the major navy base for the Imperial Japanese Navy in the Kwantung Leased Territory before and during Second Sino-Japanese War. Located in at Ryojun ), (present-day Lüshunkou, China, The Ryojun Guard District was responsible for control of the strategic seaward approaches to Manchukuo and to north China and for patrols in the Yellow Sea and along the China coastlines. It was disbanded in 1943.