Original sentence: The role of the Vietnamese Army (PAVN) in providing the security needed for the destroyed nation to rebuild and develop institutions, should not be underestimated.This unfortunate behaviour would in time contribute to create an increasingly negative image of the invaders
Edited sentence: However, the role of the Vietnamese Army (PAVN) in providing the security needed for the almost totally-destroyed nation to rebuild and develop institutions, should not be underestimated.This unfortunate behaviour would in time contribute to create a negative image of the invaders.To a certain extent, this negative image would be manipulated by the enemies of the regime in their favour