1st Amphibian Tractor Battalion, 26 March 1967

“Monsters to Rescue: Tractors from the 1st Amphibian Tractor Battalion churn into position to squelch a Viet Cong ambush which had Leathernecks from the 2d Battalion, 5th Marines [2/5] pinned down (official USMC photo by Lance Corporal J. L. McClory).” 

From the Jonathan F. Abel Collection (COLL/3611) at the Archives Branch, Marine Corps History Division