Canadians called up
In late April 1951, the retreating Chinese and North Korean forces regrouped and counter-attacked in the western and west-central sectors of the front. The South Korean forces in one area were overwhelmed and hurriedly fell back, putting them in danger of being overrun and wiped out. The 27th British Commonwealth Infantry Brigade—along with its Canadian contingent— was called up from reserve to the Kapyong Valley to cover this desperate retreat.