Historical footage, reportedly taken in December 1965, shows US Navy A-4 Skyhawks dropping cluster munitions on enemy positions in support of ground troops in combat.

The smoke rising from the river bank prior to their arrival is likely from a smoke grenade deployed by US ground troops to mark their location to avoid being bombed themselves.

An incredible amount of ordnance was dumped on Vietnam, Laos, and Cambodia during the war. Over 7.5 million tons of bombs were dropped, which is double the amount that was dropped on Europe and Asia during WWII, and to this day, remains the largest aerial bombardment campaign in world history.