Pakistan is a sovereign country in South Asia. The country is considered the 6th most populous country with a population of more than180 million. Pakistan is the 36th largest country in the world in terms of area with an area covering 881,888 km2. It is located at the crossroads of the strategically important regions of South Asia, Central Asia and Western Asia, Pakistan has a 1,046-kilometer (650 mi) coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by India to the east, Afghanistan to the west and north, Iran to the southwest and China in the far northeast. Pakistan is separated from Tajikistan by Afghanistan's narrow Wakhan Corridor in the north, and also shares a marine border with Oman.