The group estimated that the number of innocents killed in heavy combat was between 3,200 and 4,300.
As a result, the areas of these nations bordering Vietnam would see heavy combat during the war.
Sounds of heavy combat had been coming from the Ungureana for some time.
Bosnian Army soldiers said they had taken control of the town two days ago but heavy combat continued nearby.
The small 200-strong Marine company soon found themselves embroiled daily in heavy combat.
The heaviest combat was being waged higher up the hill.
The Marines engaged a communist force of unknown size in heavy combat.
English and American troops are already engaged in heavy combat.
During its rotation, the 2nd Battalion saw heavy combat throughout the area.