The main international forum for drumming up weapons and ammunition for Ukraine will for the first time meet under the auspices of a country other than the U.S. as uncertainty surrounds the future of Washington’s support for arming the war-torn country.

President-elect Donald Trump has tossed expansionist rhetoric at U.S. allies and potential adversaries with arguments that the frontiers of American power need to be extended into Canada and the Danish territory of Greenland, and southward to include the Panama Canal.