WORLD HISTORY

Detailed explanation-1: -Some people include Vietnam-a Southeast Asian country geographically-as part of East Asia, as it is always considered part of the Chinese cultural sphere.

Detailed explanation-2: -It is located at the eastern edge of mainland Southeast Asia, with an area of 331, 212 square kilometres (127, 882 sq mi) and population of 99 million, making it the world’s fifteenth-most populous country. Vietnam share land borders with China to the north, and Laos and Cambodia to the west.

Detailed explanation-3: -These subregions and the countries they include are: East Asia: China, Democratic People’s Republic of Korea, Mongolia, Republic of Korea. South Asia: Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri Lanka.

Detailed explanation-4: -It is in Southeast Asia on the eastern edge of the peninsula known as Indochina. Its neighbors include China to the north and Laos and Cambodia to the west.

Detailed explanation-5: -East Asian people (East Asians) are the people from East Asia, which consists of China, Japan, Mongolia, North Korea, South Korea, and Taiwan. The total population of all countries within this region is estimated to be 1.677 billion and 21% of the world’s population in 2020.