- Territory, National (5)
- Boundaries (4)
- Territory, National--Japan (4)
- Territory, National--Korea (South) (4)
- Tok Island (Korea)--History (3)
- Tok Island (Korea)--International status (3)
- Syria--Boundaries (2)
- Syria--History--20th century (2)
- Syria--History--21st century (2)
- Territory, National--Japan--History (2)
- Territory, National--Syria (2)
- Acquisition of territory--Japan--History (1)
- Africa--Boundaries--Congresses (1)
- Belarus--Administrative and political divisions (1)
- Belarus--Boundaries (1)
- Belarus--Ethnic relations (1)
- Belarus--Foreign relations--20th century (1)
- Belarus--Politics and government--20th century (1)
- Boundary disputes--History--20th century (1)
- Cartography--Political aspects (1)
- Decolonization--Vietnam--History--20th century (1)
- Democracy (1)
- Dien Bien Phu, Battle of, Điện Biên Phủ, Vietnam, 1954 (1)
- Economic zones (Law of the sea) (1)
- Fishery law and legislation--Japan (1)
- Fishery law and legislation--Korea (South) (1)
- Historical geography (1)
- Imperialism (1)
- Indochinese War, 1946-1954--Territorial questions (1)
- International relations (1)
- Islands--Law and legislation (1)
- Japan--Politics and government--1868-1912 (1)
- Jurisdiction (International law) (1)
- Jurisdiction, Territorial--Vietnam--History--20th century (1)
- Latin America--Boundaries--Congresses (1)
- Maps--Political aspects (1)
- Nation-state (1)
- Political geography (1)
- Sovereignty (1)
- Sovereignty, Violation of (1)
- Territory, National--Africa--Congresses (1)
- Territory, National--Belarus (1)
- Territory, National--East Asia (1)
- Territory, National--Europe (1)
- Territory, National--Korea (South)--History (1)
- Territory, National--Latin America--Congresses (1)
- Territory, National--Research--Methodology (1)
- Territory, National--Vietnam (1)
- Territory, National--Vietnam--History--20th century (1)
- Tok Island (Korea)--International status--History (1)
- Vietnam (Democratic Republic)--Politics and government (1)
- Vietnam, Northern--History--20th century (1)
- Vietnam--Boundaries (1)
- Vietnam--History--1945-1975 (1)
- Vietnam--Politics and government--1945-1975 (1)
- World politics--20th century (1)
- Điện Biên Phủ (Vietnam)--History--20th century (1)