The Marine Light Attack Helicopter Squadron-267 (HMLA-267) UH-1N "Huey" pilots run through start up procedures before taking off during the exercise MILLENNIUM EDGE on Osan Air Force Base, Osan, Korea. MILLENNIUM EDGE is a joint and combined training exercise conducted in the Republic of Korea with assets from Marine and Air Force units. The exercise gives both the pilots and ground crew members a chance to operate in an unfamiliar place with different types equipment