The People's Liberation Army Ground Force (PLAGF; ) is the land-based service branch of the People's Liberation Army and the largest and oldest branch of the entire Chinese armed forces. The PLAGF can trace its lineage from 1927 as the Chinese Red Army; however, it was not officially established until 1948. History In February 1949, the existing large number of armies and divisions were regularized into up to seventy armies of three divisions each. While some, such as the 1st Army, survived for over fifty years, a number were quickly amalgamated and disestablished in the early 1950s. It appears that twenty per cent or even more of the seventy new armies were disestablished up to 1953; in 1952 alone, the 3rd, 4th, 10th, 17th, 18th, and 19th Armies were disbanded. The PLA ground forces consist of conventionally armed main and regional units, which in 1987 made up over 70 percent of the PLA. It provided a good conventional defense, but in 1987 had only limited offensive potential and was poorly equipped for nuclear, biological, or chemical warfare. Main forces included about 35 group armies, comprising 118 infantry divisions, 13 armored divisions, and 33 artillery and antiaircraft artillery divisions, plus 71 independent regiments and 21 independent battalions of mostly support troops. Regional forces consisted of 73 divisions of border defense and garrison troops plus 140 independent regiments. Under the old system, a field army consisted of three partially motorized infantry divisions and two regiments of artillery and anti-aircraft artillery. Each field army division had over 12,000 personnel in three infantry regiments, one artillery regiment, one armored regiment, and one anti-aircraft artillery battalion. Organization was flexible, the higher echelons being free to tailor forces for combat around any number of infantry divisions. At least theoretically, each division had its own armor and artillery — actual equipment levels were not revealed and probably varied — and the assets at the army level and within the independent units could be apportioned as needed. In 1987 the new, main-force group armies typically included 46,300 soldiers in up to four divisions, believed to include infantry, armor, artillery, air defense, airborne, and air support elements. Although the new group armies were supposed to reflect a move to combined-arms operations, because of a lack of mechanization they continued to consist of infantry supported by armor, artillery, and other units. The 13 armored divisions each had 3 regiments and