Vũ Duy Thông and Văn Hiền went with Army Corp No 2 to cover its movement from Kiên Giang to Takeo and Kampong Som. In Cambodia, there were so many landmines of the Pol Pot forces. Artillery shells from the Pol Pot forces still fell on it. The Pol Pot forces also knew the importance of this front and as such, deployed their units both horizontally and vertically. This was the last defensive line of the Pol Pot forces before the entrance to Phnom Penh.
