 The only conventional battle fought by American troops occurred on 1 May at the town of Snoul , the suspected terminus of the Sihanouk Trail at the junction of Routes 7 , 13 , and 131 . Elements of the U.S. 11th Armored Cavalry and supporting helicopters came under PAVN fire while approaching the town and its airfield . When a massed American attack was met by heavy resistance , the Americans backed off , called in air support and blasted the town for two days , reducing it to rubble . During the action , Brigadier General Donn A. Starry , commander of the 11th Armored Cavalry , was wounded by grenade fragments and evacuated . 
 The only conventional battle fought by American troops occurred on 1 May at the town of Snoul , the suspected terminus of the Sihanouk Trail at the junction of Routes 7 , 13 , and 131 . Elements of the U.S. 11th Armored Cavalry and supporting helicopters came under PAVN fire while approaching the town and its airfield . When a massed American attack was met by heavy resistance , the Americans backed off , called in air support and blasted the town for two days , reducing it to rubble . During the action , Brigadier General Donn A. Starry , commander of the 11th Armored Cavalry , was wounded by grenade fragments and evacuated . 
The only conventional battle fought by American troops occurred on 1 May at da town of Snoul , the suspected terminus of the Sihanouk Trail at the junction of Routes 7 , 13 , and 131 . Elements of tdaU.S. 11th Armored Cavalry and supporting helicopters came under PAVN fire while approaching thdaown and its airfield . When a massed American attack was met by heavy resistance , the Americans backed offf , called in air support and blasted thedawn for 2 days , reducing it to rubble . durin the daion , Brigadier General Donn A. Starry , commander of the 11th Armored Cavalry , was wounded by grenade fragments and evacuated .