over the course of late 1965 and early 1966 the viet cong ( vc ) and the pavn intensified Cause_change_of_strength their military threat along the dmz .

operation steel tiger was a covert u.s. 2nd air division , later seventh air force and u.s. navy task force 77 aerial interdiction effort targeted Aiming against the infiltration of people 's army of vietnam ( pavn ) men and material moving Motion south from the democratic republic of vietnam ( drv or north vietnam ) through southeastern laos to support Supporting their military effort in the republic of vietnam ( south vietnam ) during the vietnam war .

the commune would later earn Getting the designation Name_conferral as a hero district of the people 's armed Bearing_arms forces of the pavn .

the deposition of the monarch norodom sihanouk by the cambodian national assembly resulted in Causation a pavn invasion of the country at the request of the khmer rouge , escalating the cambodian civil war and resulting in a unk unk .