Savage Descent (1989)

During the Vietnam war, soldier Phayu (Sorapong Chatree) barely escapes after nearly his entire platoon gets wiped out. He ends up in a village where he falls in love with Surita (Duangdeuan Jithaisong), incurs the wrath of one of her jealous suitors and must get revenge when bandits show up and kill Surita's family.