(1) while engaged in an action against an enemy of the United States;
(2) while engaged in military operations involving conflict with an opposing foreign force; or
(3) while serving with friendly foreign forces engaged in an armed conflict against an opposing armed force in which the United States is not a belligerent party.
Structure US Code
Subtitle C— Navy and Marine Corps
CHAPTER 837— DECORATIONS AND AWARDS
§ 8293. Distinguished-service medal
§ 8295. Distinguished flying cross
§ 8296. Navy and Marine Corps Medal
§ 8301. Delegation of power to award
§ 8304. Availability of appropriations
§ 8305. Commemorative or special medals: facsimiles and ribbons
§ 8306. Medal of honor: duplicate medal