Ten days later, the squadron took part in the first attack on the Japanese Home Islands since the 1942 Doolittle Raid. Attacks on Japan required staging through forward bases in China, and it took twelve flights by the bombers to transport enough fuel and munitions to the forward bases to prepare for one attack sortie. This limited attacks on Japan to one in ten days. However, the squadron attacked iron plants, aircraft factories, naval installations, transportation centers and other targets in Japan. The squadron moved its available aircraft to the forward base at Chiung-Lai Airfield. Staging of B-29s, already armed and loaded with bombs began on 13 June and was only completed on the day of the raid, with only refueling needed at Chiung-Lai. The primary target for this mission was the Imperial Steel Works at Yawata.