Japanese air attacks on the Mariana Islands commandos undertook intensive training at Saitama Kanto and the raid was scheduled to take place on January 17, 1945, but was canceled after damage to the airfields at Iwo Jima. The Giretsu Airborne Unit instead attacked a U.S. airbase at Okinawa on 24 May, destroying nine aircraft and damaging another 29. Following the perceived success of the raid on Okinawa the IJN developed plans for a force of naval commandos to attack airfields in the Marianas. On June 24, it issued orders for a raid involving 30 Yokosuka P1Y "Frances" bombers and 20 G4Ms carrying naval commandos. The plan, Operation
Internment of Japanese Americans or sent them to the United States for internment. Brazil also restricted its Japanese Brazilian population. Although Japanese Americans in Hawaii comprised more than one third of the population, businessmen resisted their being interned or deported to mainland concentration camps, as they recognized their contributions to the economy. In the hysteria of the time, some mainland Congressmen (Hawaii was only a U.S. territory at the time, and did not have a voting representative or senator in Congress) promoted that all Japanese Americans and Japanese immigrants should be removed from Hawaii but were unsuccessful. An estimated 1,200 to 1,800 Japanese nationals