This panel approaches the subject of diplomatic relationships in the wake of imperial collapse in Asia, Africa, and the Americas. Andrew Hermeling explores how French imperialism in the Ohio Country persisted on diplomatic terms, even after the 1763 Treaty of Paris ceded French territories to the British. Hans Meijer and Rimko van der Maar address diplomat Herman van Roijen’s role as negotiator at the end of the Dutch-Indonesian decolonization conflict, concentrating on how van Roijen came to this position in 1949 and how he, as an individual, could influence the delicate diplomatic process. Poppy Cullen considers the necessary changes in diplomatic practice as Kenya moved from a colony to an independent state, arguing that, despite formal changes, there were many continuities in relations between Britain and Kenya. Roy Doron examines British attempts to maintain control over Nigeria’s foreign relations after the latter’s independence in 1960 and the widespread protests which caused the Nigerians to anull the pact in 1962. Melissa Byrnes focuses on the complicated diplomatic relationship between France and Portugal after France had given up the last of its overseas empire, highlighting French attempts to maintain their close alliance with Portugal even as other western powers censured Salazar’s regime for its conduct in Africa. While some of the incidents or processes addressed here are well known, taken together these papers shine new light on the rhetoric and mechanics of international relationships in eras of massive border shifts and redefined global systems.