A holiday honoring Panamanians killed protesting the U.S. presence there in 1964 takes on added resonance amid Trump's threats to retake the Panama Canal.

Trump's intention marks a rejection of decades of U.S. policy that has prioritized self-determination over territorial expansion.

Hundreds of Panamanians marched on Thursday to mark the anniversary of a deadly uprising against U.S. control of the Panama Canal in 1964, with some protesters burning an effigy of President-elect Donald Trump who has threatened to retake the vital global waterway.