On 26 September 1941, Captain Tanaka took command of the 2nd Destroyer Squadron with his
flagship being the light cruiser
Jintsū once again. Tanaka was promoted to the rank of
rear admiral on 15 October of the same year. The 2nd Destroyer Squadron, under Tanaka, and initially composed of eight
destroyers in addition to the light cruiser
Jintsū, participated in the
invasion of the Philippines and of the
Dutch East Indies, including the
Battle of the Java Sea, during the early months of the
Pacific War between Japan and
Allied forces. On 21 May 1942, Tanaka's 2nd Destroyer Squadron—consisting of
Jintsū and 10 destroyers—sortied from
Kure to support the Japanese attack on
Midway Island by escorting the transports carrying the troops for the prospective invasion (which was never carried out, because of the American air supremacy there). After the Japanese defeat in the
Battle of Midway, Tanaka's ships returned to Japan via the island of
Guam. After the
U.S. Marine Corps landing by the American
1st Marine Division on the island of
Guadalcanal on 7 August 1942, Tanaka with the 2nd Destroyer Squadron departed from Japan immediately to steam to the main Japanese
Central Pacific base at
Truk Atoll. The 2nd Destroyer Squadron departed from Truk on 16 August, escorting a convoy carrying the troops to counterattack the American Marines forces on Guadalcanal. On 25 August, during the
Battle of the Eastern Solomons, Tanaka's ships were attacked by Marine Corps warplanes from
Henderson Field on Guadalcanal. One transport ship and one destroyer were sunk by the Marine aviators and
Jintsū was bombed and heavily damaged, with Tanaka being wounded. Due to the damage to
Jintsū, Tanaka shifted his flag to the destroyer . Nevertheless, Tanaka was promoted to the rank of
vice admiral on 15 October 1944. ==Postwar==