The country’s leader, Gustavo Petro, backed down after a clash with President Trump, which started when Mr. Petro turned back U.S. military planes carrying deportees.

The nations spent much of the day in a tense standoff, with the U.S. president threatening tariffs and visa restrictions after Colombia turned away two deportation flights.

Repatriation flights carrying deported Colombian nationals resumed Tuesday after President Donald Trump successfully pressured the Colombian government into accepting deportees once again, ending a brief but intense diplomatic standoff.