The 100th Battalion, 442nd Infantry is the only infantry unit in the U.S. Army Reserve and combines the identities of two Second World War Japanese-American units, the 100th Infantry Battalion and the 442nd Regimental Combat Team. Based at Fort Shafter, Honolulu, Hawaii, the 100th Battalion has reservists from Hawaii, American Samoa, Guam and Saipan, and has been activated and deployed to Iraq.