The 100th Infantry Battalion combined with a regiment composed of men of Japanese ancestry who fought primarily in what war?
100th Infantry Battalion (United States) The 100th Infantry Battalion is the only infantry unit in the United States Army Reserve. In World War II, the then-primarily Nisei battalion was composed largely of former members of the Hawaii Army National Guard. The 100th saw heavy combat during World War II before and after combining with the 442nd Infantry Regiment, another mostly Nisei military unit, into a single fighting combat team. Based at Fort Shafter, Honolulu, Hawaii, the 100th Battalion has reservists from Hawaii, American Samoa, Guam and Saipan, and has deployed to Iraq and Kuwait. The unit was unofficially nicknamed the "Purple Heart Battalion", with the motto "Remember Pearl Harbor".
Sakae Ōba Sakae Ōba (大場 栄 , Ōba Sakae ) (21 March 1914 – 8 June 1992) was an officer of the Imperial Japanese Army during World War II. He served in both China and in the Pacific campaign. After Japanese forces were defeated in the Battle of Saipan, he led a group of soldiers and civilians deep into the jungle to evade capture by Allied forces. Under Ōba's leadership, the group survived for over a year after the battle and finally surrendered in December 1945, three months after the war had ended. Following his return to Japan, he became a successful businessman and served on the city council of Gamagori, Aichi.