Gen. Joseph Stilwell and Gen. George Marshall studied Chinese as officers stationed in China and understood the need to provide language training for enlisted troops, establishing a language program in 1924 to teach U.S. soldiers and officers in Asia the rudiments of spoken Chinese. Recognizing the strained relations between Japan and the U.S. in the build up to the war, a small group of officers with previous tours of duty in Japan saw the need for an intelligence unit, which would be able to understand the Japanese language. This group of officers was headed by Lt. Col. John Weckerling and Capt Kai E. Rasmussen. Japanese American Maj John F. Aiso and Pfc Arthur Kaneko, were found to be qualified linguists along with two civilian instructors, Akira Oshida and Shigeya Kihara, and became MISLS's first instructors.