slightly more than five times the size of Georgia; slightly less than twice the size of California
The Indus Valley civilization, one of the oldest in the world and dating back at least 5,000 years, spread over much of what is presently Pakistan. During the second millennium B.C., remnants of this culture fused with the migrating Indo-Aryan peoples. The area underwent successive invasions in subsequent centuries from the Persians, Greeks, Scythians, Arabs (who brought Islam), Afghans, and Turks. The Mughal Empire flourished in the 16th and 17th centuries; the British came to dominate the region in the 18th century. The partition in 1947 of British India into the Muslim state of Pakistan (with West and East sections) and largely Hindu India created lasting tension between the two countries, with India and Pakistan fighting two wars and a limited conflict - in 1947-48, 1965, and 1999 respectively - over the disputed Kashmir territory, a dispute that continues to cause tensions between both countries to this day. A third war between these countries in 1971 - in which India assisted an indigenous movement reacting to the marginalization of Bengalis in Pakistani politics - resulted in East Pakistan becoming the separate nation of Bangladesh.
In response to Indian nuclear weapons testing, Pakistan conducted its own tests in mid-1998. Pakistan has been engaged in a decades-long armed conflict with militant groups, including the Tehreek-e-Taliban Pakistan (TTP) and other militant networks, that target government institutions and civilians.
one of the world’s top transit corridors for opiates and cannabis products trafficked with Afghanistan and Iran; increased synthetic drug smuggling primarily methamphetamine; a major source of precursor or essential chemicals used in the production of heroin and amphetamine-type stimulants
Pakistan-Afghanistan: since 2002, with UN assistance, Pakistan has repatriated about 5.3 million Afghan refugees, leaving as many as 3 million; Pakistan has sent troops across and built fences along some remote tribal areas of its treaty-defined Durand Line border with Afghanistan, which serve as bases for foreign terrorists and other illegal activities; in February 2022, amid skirmishes between Taliban and Pakistani forces, Pakistan announced its intent to finish constructing the barbed wire fence along the Durand Line and bring nearby areas under its control; Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on maps
Pakistan-China: none identified
Pakistan-India: Kashmir remains the site of the world's largest and most militarized territorial dispute with portions under the de facto administration of China (Aksai Chin), India (Jammu and Kashmir), and Pakistan (Azad Kashmir and Northern Areas); UN Military Observer Group in India and Pakistan has maintained a small group of peacekeepers since 1949; India does not recognize Pakistan's ceding historic Kashmir lands to China in 1964; India and Pakistan have initiated discussions on defusing the armed standoff in the Siachen glacier region; the Siachen glacier is claimed by both countries and militarily occupied by India: Pakistan opposed India's fencing the highly militarized Line of Control (completed in 2004) and the construction of the Baglihar Dam on the Chenab River (opened in 2008) in Jammu and Kashmir, which is part of the larger dispute on water sharing of the Indus River and its tributaries; to defuse tensions and prepare for discussions on a maritime boundary, India and Pakistan seek technical resolution of the disputed boundary in Sir Creek estuary at the mouth of the Rann of Kutch in the Arabian Sea; Pakistani maps continue to show Junagadh in India's Gujarat State as part of Pakistan