Afghanistan, officially the Islamic Republic of Afghanistan, is a landlocked country at the crossroads of Central and South Asia. Afghanistan is bordered by Pakistan to the east and south; Iran to the west; Turkmenistan, Uzbekistan, and Tajikistan to the north; and China to the northeast.
Occupying 652,000 square kilometers (252,000 sq mi), it is a mountainous country with plains in the north and southwest. Kabul is the capital and largest city. The population is around 32 million, composed mostly of ethnic Pashtuns, Tajiks, Hazaras, and Uzbeks.
China is the third largest country in the world by area and the largest country in the world by population. Properly known as the People’s Republic of China, the political territory of the country includes the former nations of Tibet and Hong Kong. The capital is Beijing.
Russia, or the Russian Federation, is a transcontinental country located in Eastern Europe and Northern Asia. It extends from the Baltic Sea in the west to the Pacific Ocean in the east, and from the Arctic Ocean in the north to the Black Sea and the Caspian Sea in the south.
Russia spans more than one-eighth of the Earth’s inhabited land area, stretching eleven time zones, and bordering 16 sovereign nations. Moscow is the country’s capital.
The Soviet Union was dissolved in 1991 and since 1993 Russia been governed as a federal semi-presidential republic. Russia is a major great power, with the world’s second-most powerful military, and the fourth-highest military expenditure. As a recognised nuclear-weapon state, the country possesses the world’s largest stockpile of nuclear weapons.