In July 1942, Lieutenant Kofukuda was assigned as the
Hikōtaichō of the
6th Air Group, which was intended to be the garrison for
Midway Island, which was ultimately
not captured by Japan. At the time the unit was stationed at
Kisarazu in Japan and was then ordered to move to
Rabaul on
New Britain on 21 August. Lieutenant Kofukuda led a 5,000-kilometer over-water ferry flight of 18 Zero fighters from Japan to Rabaul via island bases (
Iwo Jima,
Saipan,
Truk and
Kavieng), which was unprecedented for a single-seat aircraft at the time. Initially, Lieutenant Kofukuda and his Air Group provided air defence for Rabaul base and air cover for ship convoys, then took part in attacks on
Guadalcanal from 11 September 1942. In one such attack on 28 September, Lieutenant Kofukuda led 27 Zeros to escort 27
Mitsubishi G4M bombers. Receiving an early warning from
coastwatchers and
radar, the US forces from
Henderson Field scrambled 35
Grumman F4F Wildcat fighters to intercept the strike, destroying eight G4Ms. In response the Japanese changed tactics, and on 2 October Lieutenant Kofukuda led a fighter sweep of 28 Zeros ahead of nine G4M bombers and eight Zeros, acting as a decoy and turning back before reaching
Guadalcanal. His unit managed to surprise the intercepting 36 Wildcats and shot down six of them for the loss of one Zero, in addition to destroying two
Douglas SBD Dauntless dive bombers on the way back. On 8 October 1942, Lieutenant Kofukuda and his unit moved from Rabaul to a newly completed airstrip at
Buin on
Bougainville. His unit could then operate the new
Model 32 Zero fighters, which previously did not have the combat range to reach Guadalcanal from Rabaul. On 22 October, he led nine Zeros to escort a strike of six
Aichi D3A dive bombers against Allied ships off Guadalcanal and the next day he led a fighter sweep of 12 Zeros ahead of G4M bombers that attacked Henderson Field. Kofukuda described a typical fighter sweep mission against Guadalcanal: On 1 November 1942, Kofukuda's unit was renamed to
204th Air Group, and he was promoted to
lieutenant commander in the meantime. On 14 November, he participated in the
Naval Battle of Guadalcanal, where he protected Rear Admiral
Raizō Tanaka's transports carrying fresh troops and supplies to Guadalcanal. However, during his patrol, he lost two of his Zero fighters, and one transport was hit by enemy SBD dive bombers. ==Later career==