From a post somewhere on FB:
The outnumbered PEFTOK (Philippine Expeditionary Force to Korea) 10th Battalion Combat Team defeated the numerically superior Chinese People's Volunteers Army 44th Division, prevented the Chinese offensive and turned the tide of the Korean War on the side of UN Forces. Although the 10th BCT had lost all contacts with the outside world, the Filipinos held their position until the Chinese stopped their attacks on the morning of April 23, 1951.
Battle of Yultong is known to be one of the best acts of valor of our Filipino soldiers against a sea of Chinese forces; who at that time was aiding North Korea.