State
nation-state
stateless nation
multinational state
Sovereignty
Multi State nation
Autonomous region
nationalism
Self-determination
Colonialism
Decolonization
Genocide
Cold War
Satellite states
devolution
Choke point
neocolonialism
relic boundary
superimposed boundary
antecedent boundary
consequent boundary
demarcated boundary
Demilitarized Zone
Berlin Conference
landlocked
maritime boundary
UNCLOS
international waters