Rawalpindi is in Pakistan. It is a bustling town strategically located between the Punjab and Azad Kashmir. It has a strong colonial influence and possesses a large military cantonment with the headquarters of the Pakistan Army. It is the sister city of Islamabad, and is essentially the older sister of Islamabad. To locals, it is simply known as "Pindi".
Rawalpindi is the fourth-largest city in Pakistan by population, while the larger Islamabad Rawalpindi metropolitan area is the country's third-largest metropolitan area. Rawalpindi is located on the Pothohar Plateau, known for its ancient Buddhist heritage, especially in the neighbouring town of Taxila - a UNESCO World Heritage Site. The city was destroyed during the invasion of Mahmud of Ghazni before being taken over by Gakhars in 1493. In 1765, the ruling Gakhars were defeated as the city came under Sikh rule, and eventually became a major city within the Sikh Empire based in Lahore. The city was conquered by the British Raj in 1849, and in 1851 became the largest garrison town for the British Indian Army. Following the partition of British India in 1947, the city became home to the headquarters of Pakistan Army hence retaining its status as a major military city. Construction of Pakistan's new purpose-built national capital city of Islamabad in 1961 led to greater investment in the city, as well as a brief stint as the country's capital immediately before completion of Islamabad.