Vietnam - military
A soldier from the 8th Engineer Battalion, 1st Cavalry Division prepares to enter a tunnel while an armed soldier keeps guard. They were hoping to clear any Viet Cong who might be hiding in the tunnel out.

A soldier from the 8th Engineer Battalion, 1st Cavalry Division prepares to enter a tunnel while an armed soldier keeps guard. They were hoping to clear any Viet Cong who might be hiding in the tunnel out.

tunnel