ally archduchy archdukedom barrier body politic brattice buffer bulkhead bumper captive nation chieftaincy chieftainry city-state cloison collision mat colony commonweal commonwealth country county cushion diaphragm dissepiment dividing line dividing wall division domain dominion duchy dukedom earldom empery empire fender free city grand duchy interseptum kingdom land mandant mandate mandated territory mandatee mandatory mat midriff midsection nation nationality pad panel paries partition party wall polis polity possession power principality principate property line protectorate province puppet government puppet regime realm republic satellite seneschalty separation septulum septum settlement shock pad sovereign nation state sultanate superpower territory toparchia toparchy wall