David McKelvey: Củ Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Human trap, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Small tunnel entrance, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: American Tank, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: American Tank, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: American Tank, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Weapons gallery, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Clipping armpit trap, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Rolling Trap, Cu Chi Tunnels, Ho Chi Minh City, Vietnam
David McKelvey: Window Trap, Cu Chi Tunnels, Ho Chi Minh City, Vietnam