Lieutenants Lemon and Riedel man their M-60 machine gun aboard a Quiet Fast Boat during a patrol in the Bassac River,Vietnam.

Officers aboard Quiet Fast Boats during a patrol in the Bassac River, Vietnam. An M-60 machine gun in the foreground. US Lieutenant Lemon and Lieutenant Riedel man their M-60 machine gun in the stern section of the QFB ( Quiet Fast Boats). Heavy foliage along the riverbank. One of the officers takes a paddle from the boat and puts it over the side. Chief Petty Officer Briggs is the coxswain of the boat. Lieutenant Lemon and Lieutenant Riedel man their M-60 machine gun in the background. One of the man tosses something out of the boat. Helicopters in flight.