Final answer:
The Purple Heart is awarded to U.S. Armed Forces members who have been wounded or killed in service after April 5, 1917.
Step-by-step explanation:
The medal awarded to members of the Armed Forces of the United States who have been killed or wounded while serving after 5 April 1917, is the Purple Heart. This decoration recognizes the sacrifices of those who have been injured or paid the ultimate sacrifice in the line of duty. It is a symbol of honor for the courage and commitment demonstrated by servicemen and servicewomen.