During Vietnam, the basic role of the USMC gunship squadrons was to protect the transport helicopters during medevac missions, troop insertions and extractions, resupply missions, and supporting the Marines on the ground during operations and patrols. Basically, whenever the Marines or South Vietnam friendlies got in trouble the gunships were dispatched to assist them.

As a gunner, and later crew chief, Pete Greene flew hundreds of missions on Huey gunships – flying practically every day with different pilots and gunners. In this vivid memoir he recalls many of those missions, including providing gunship support for MACV-SOG in and around I Corps area, working with Marine Recon, and undertaking frequent, perilous resupply and medevac and medevac support missions.