Colonel Christos J. Evangelos was commissioned an Infantry Officer upon graduation from Officer Candidate School, 30 August 1951, Class Number 2. His first duty assignment was as an Platoon Leader, 169th Infantry Regiment, 43d Division. | His subsequent duty assignment include: Company XO, 169th Infantry Regiment, 43d Division; Adjutant, 12th  AIB, 2d Armd Division; Company Commander/Executive Officer, Company E, 1st Brigade, 7th Cavalry, Korea; Assistant PMS, ROTC, Providence Col, Rhode Island; Senior Regional/Popular Force Advisor, III Corps, Vietnam; Staff Officer, ODCSPER DA, Washington D.C.; Battalion Commander, 4th Battalion, 10th Infantry, Canal Zone, Panama. | His awards and decorations include: Legion of Merit (1 Oak Leaf Cluster), Meritorious Service Medal; AM; Army Accommodation Medal (1 Oak Leaf Cluster); Republic of Vietnam Gallantry Cross (1 Silver Star), Combat Infantryman Badge; General Staff Identification Badge.