The Purple Heart is awarded as an entitlement upon being killed or wounded in a manner meeting the specific criteria. (1) In any action against an enemy of the U.S.; (2) In any action with an opposing armed force of a foreign country in which the Armed Forces of the U.S. are or have been engaged; (3) While serving with friendly foreign forces engaged in an armed conflict against an opposing armed force in which the U.S. is not a belligerent party; (4) As a result of an act of any such enemy of opposing armed forces; (5) As the result of an act of any hostile foreign force; (6) After March 28, 1973, as a result of an international terrorist attack against the U.S.; (7) After March 28, 1973, as a result of military operations, while serving outside the territory of the U.S. as part of a peacekeeping force; (8) After December 7, 1941, by weapon fire while directly engaged in armed conflict, regardless of the fire causing the wound; (9) While held as a prisoner of war or while being taken captive. Additionally, individuals wounded or killed as a result of friendly fire in the heat of battle will be awarded the Purple Heart as long as the "friendly" projectile or agent was released with the full intent of inflicting damage or destroying enemy troops or equipment. To denote additional decorations of the award attachments of a Bronze or Silver Oak Leaf Device are added.