History of pak-army
Pakistan Army serves as the land-based branch of the Pakistan Military. Chapter 2 of PART XII of Pakistani Constitution defines the purpose of the Army as:
The Armed Forces shall, under the directions of the Federal Government, defend Pakistan against external aggression or threat of war, and, subject to law, act in aid of civil power when called upon to do so.
General Ayub Khan arriving to take command of the Pakistan Army in 1951
The Pakistan Army was created on 30 June 1947 from the division of the British Indian Army. The then soon to be created Dominion of Pakistan received six armoured, eight artillery and eight infantry regiments compared to the 12 armoured, forty artillery and twenty one infantry regiments that went to India. Fearing that India would take over the state of Kashmir, irregulars, scouts and tribal groups entered the Muslim majority state of Kashmir to oppose the Maharaja of Kashmir 1947. In response to this, the Maharaja acceded to India. The Indian Armed Forces were then deployed to Kashmir. This led to the Indo-Pakistani War of 1947. Regular Army units joined the invasion later on but were stopped after the refusal of the Chief of Army Staff, British officer General Sir Frank Messervy, to obey Pakistani leader Muhammed Ali Jinnah's orders to move the army into Kashmir. A ceasefire followed on UN intervention with Pakistan occupying the northwestern part of Kashmir and India occupying the rest. Later, during the 1950s, the Pakistan Army received large amounts of economic and military aid from the United States and Great Britain after signing two mutual defence treaties, the Baghdad Pact, which led to the formation of the Central Treaty Organization, and the South East Asian Treaty Organization (SEATO) in 1954. This aid greatly expanded the Pakistan Army from its modest beginnings.
The sole division headquarters that went to Pakistan was the 7th. 8th and 9th...