The Guard Corps also Guard Force, was the stationary military unit of the Haganah

Haganah

Haganah was a Jewish paramilitary organization in what was then the British Mandate of Palestine from 1920 to 1948, which later became the core of the Israel Defense Forces.- Origins :...

, a Jewish paramilitary organization in Mandatory Palestine. It was responsible for guarding the Jewish villages from attacks, especially by Arab gangs.

The Guard Corps was founded in 1939, following the 1936–1939 Arab revolt in Palestine. It included mostly older and less healthy soldiers (usually between 35 and 50), while those who were able to participate in field combat were drafted into the Field Corps

HISH

The Hish was a corps formed by the Haganah in the British Mandate of Palestine in 1939 following the disbandment of the smaller mobilized force known as the Fosh. It was the Haganah's main surface corps, alongside Him and the Palmach....

 and later also Palmach

Palmach

The Palmach was the elite fighting force of the Haganah, the underground army of the Yishuv during the period of the British Mandate of Palestine. The Palmach was established on May 15, 1941...

. At the end of World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, the Guard Corps consisted of more than 30,000 members country-wide.