Meanwhile, supported by aid from China and the Soviet Union, North Vietnam strengthened its air defenses. By November 1967, the number of American troops in Vietnam was approaching 500,000, and U.S. casualties had reached 15,058 killed and 109,527 wounded.
The seven independent countries of the region are India, Bangladesh, Pakistan, Nepal, Sri. Lanka, Bhutan and Maldives. India has been the central core of this region both physically and. culturally. The other countries form the peripheral region that has been influenced historically. and politically by the core for many centuries. South Asia is located at the southern extremity of.
A place is classed as a subcontinent when it is part of a continent but is considered either geographically or politically as an independent entity or it is smaller than a continent. India is often called a subcontinent because it is a distinct landmass, not just a country. While it has many features of a continent, it is not as big as one, so is not considered a continent. India was once a continent (or at least a very large island). Due to continental drift, India moved north and became part of Asia.