By 1945, the latter three divisions were disbanded as the threat to North America diminished. A Third Canadian Division (Canadian Army Occupation Force) was raised in 1945 for occupation duty in Germany, organized parallel to the combatant Third Division, and a Sixth Canadian Division (Canadian Army Pacific Force) was undergoing formation and training for the invasion of Japan when the latter country surrendered in September 1945. All five combatant divisions, as well as the CAOF and CAPF, were disbanded by the end of 1946. A First Canadian Division Headquarters (later renamed simply First Division) was authorized once again in April 1946, but remained dormant until formally disbanded in July 1954. Simultaneously, however, another "Headquarters, First Canadian Infantry Division" was authorized as part of the Canadian Army Active Force (the Regular forces of the Canadian military), in October 1953. This, the first peacetime division in Canadian history, consisted of a brigade in Germany, one in Edmonton and one at Valcartier. This division was disbanded in April 1958. The First Canadian Division was reactivated in 1988 and served until the 1990s when the headquarters of the division was transformed into the Canadian Forces Joint Headquarters and placed under the control of the Canadian Expeditionary Force Command. The CFJHQ was transformed back into Headquarters, 1st Canadian Division, on 23 June 2010, the unit once more falling under the control of the Canadian Army. The unit is based at Kingston. Canada currently has five divisions under its command. The 1st Canadian Division has approximately 2000 troops under its command, while the 2nd Canadian Division, 3rd Canadian Division, 4th Canadian Division, and 5th Canadian Division have approximately 10,000 troops each. The People's Liberation Army Ground Force (PLAGF) is the world's largest ground force, currently totaling some 1.6 million personnel. The ground forces are divided into five Theater Commands. The regular forces of the ground forces consist of 18 group armies: corps-size combined arms units each with 24,000–50,000 personnel. The group armies contained among them:  As of 2011, the PLA went from a division-dominated structure to a brigade-dominated one. Until 2017, there were a further three airborne divisions in the 15th Airborne Corps, but these were reformed into six airborne brigades and a special operations brigade as part of a reform program aimed at reorganizing all PLA divisions into brigades. The NRA Division () was a military unit of the Republic of China. The original pattern of the infantry division organization of the early Republic was a square division.