Puerto Ricans in the Vietnam War Cambodia from 1959 to April 30, 1975. Puerto Ricans served in different positions throughout the military as commanders, fighter pilots and common foot soldiers. Many of them distinguished themselves in combat and were awarded the highest honors conferred by the military. Five were awarded the Medal of Honor, the highest United States military decoration; five were awarded the Distinguished Service Cross (DSC), the second-highest military decoration of the United States Army; and two received the Navy Cross, the second-highest medal that can be awarded by the U.S. Navy. The Navy Cross is awarded to members of the U.S. Navy or
Canadian Efficiency Decoration Canadian Efficiency Decoration The Canadian Efficiency Decoration (ED) was a Canadian military award given to officers of the Non-Permanent Active Militia, RCAF Auxiliary and Reserve who completed twenty years of meritorious military service. Similar Efficiency Decorations were also awarded by other Commonwealth countries. A bar was issued for an additional 20 years of meritorious service. Approximately 3,700 medals were issued. Time spent in war service counted double towards the 20 year requirement and time spent in the ranks counted as half. The award was superseded by the Air Efficiency Award for members of the RCAF Auxiliary and Reserve in 1942.