national capital - the capital city of a nation

Sitsang, Thibet, Tibet, Xizang - an Asian country under the control of China; located in the Himalayas

section - a distinct region or subdivision of a territorial or political area or community or group of people; "no section of the nation is more ardent than the South"; "there are three synagogues in the Jewish section"

Beijing, capital of Red China, Peiping, Peking - capital of the People's Republic of China in the Hebei province in northeastern China; 2nd largest Chinese city