1st Provisional Marine Brigade
At first, the North Koreans stopped a lot of the attack, but then they got overwhelmed from heavy fire that was targeting them. The 1st PMB started to take one hill at a time. The Marines took Obong-ni first then they destroyed a lot of enemies there with airstrikes. They destroyed all of the 18th Regiment. The North Korean 4th Divisions tactics and strategies didn't work very well so they couldn't use them.