Colonel Yukio Otsuka was commissioned an Infantry Officer upon graduation from Officer Candidate School Class #6 on 22 September 1955. His first duty assignment was as a Battalion Communications Officer, 3rd Battalion, 31st Infantry Regiment, 7th Infantry Division, Korea. | His subsequent duty assignments include: Assistant Post Engineer, Seoul Military Post, Seoul, Korea; Platoon Leader, 125th Sig Bn, 25th Inf Div, Schofield Barracks, Hawaii; Battle Group Signal Officer, 1st Battle Gp 14th Inf, 25th Inf Div, Schofield Barracks, Hawaii; OIC, Plant Br OIC, Traffic Br, U.S. Army Communications Administration Network (ACaliforniaN) Station, Fort Shafter, Hawaii; OIC, Traffic Br, Primary Relay Station, Europe, Pirmasens, Germany; Deputy Commander, Primary Relay Station, Europe, Pirmasens Germany; Student Military and Civil School; Assistant Div Signal Officer, 25th Inf Div, Schofield Barracks, Hawaii; Assistant Div Signal Officer, CuChi, Vietnam; Deputy Commander, Phu Lam Relay Station, Phu Lam, Vietnam; Chief, Operations Div, G3, Strategic Communications Command, Pac (STRATCOM PAC), Schofield Barracks, Hawaii; Commander, Theater Communications Security Logistics Activity--Pacific, USA Signal GP, Hickam Air Force Base, Hawaii; OIC, Fort Shafter Telecommunications Center, USA Sig Gp, Fort Shafter, Hawaii; Student, CGSC; Commander, 60th Sig Bn, Phu Lam, Vietnam; Dep Commander, USA Signal Group, Hawaii, Schofield Barracks, Hawaii; Commander, USA Signal Spt Agency, Schofield Barracks, Hawaii; Inspector General, HQS, USA Strategic Communications Command, Fort Huachuca, Arizona; Commander, USA Communications Security Logistics Activity (CSLA), Fort Huachuca, Arizona. | Colonel Yukio Otsuka is a graduate of the University of Nebraska (Omah) w/ a Bachelor's degree in Economic History. His military schools attended include: Advance Signal Course, Fort Monmouth, New Jersey; Command and General Staff College, Fort Leavenworth, Kansas. | His military awards include: Legion of Merit w/ Oak Leaf Cluster, Bronze Star Medal, Meritorious Service Medal w/ 2d Oak Leaf Clusters, Good Conduct Medal, United Nations Service Medal, Korean Service Medal, Vietnam Service Medal, National Defense Service Medal w/ Oak Leaf Cluster, Vietnam Campaign, Army Service Ribbon, North Carolina O Professional Development Ribbon, Army Overseas Ribbon, Combat Infantryman Badge.