President Donald Trump posted threats against Colombia on his social media platform on Sunday after two U.S. military repatriation flights were prevented from landing.

Deportation flights between the U.S. and Colombia have resumed following a dispute between the two countries that nearly led to a trade war.

Colombia isn’t the first nation to have materially countered Trump’s deportation plans. Still, its tiff with the U.S. is indicative of some lesser-known trade entanglements between North and South America—and of the potential for the Trump administration to hurt Americans’ pocketbooks in its craven pursuit of mass deportations.

Daniel Oquendo, 33, remembers well the first words US border agents told him after he crossed the US-Mexico border on0.

Colombia's President Gustavo Petro averted an economic disaster at the 11th hour after diplomats from his government and the U.S. reached a deal on deportation flights, but the Colombian business community on Monday called for cooler heads to prevail as Colombians bemoaned canceled U.

If Trump had carried out the threat of tariffs, the prices of many goods imported from Colombia could have increased, including coffee, flowers and crude oil.

A short-lived tariff feud with the Latin American nation underscored the president's propensity to use economic sanctions as political leverage.

The US and Colombia pulled back from the brink of a trade war after the White House said the South American nation had agreed to accept military aircraft carrying deported migrants.

But romantics may spared from becoming victims of a trade dispute. The White House declared victory on Sunday, saying that Colombia had reversed itself and agreed to allow the flights to land, backing down just hours after Trump threatened to impose visa restrictions in addition to the steep tariffs on its longtime ally in South America.

The president authorized the military to assist in deportations. The planes triggered a crisis between the United States and Colombia, and prompted questions. Here’s what to know.

Under international law, countries are obligated to receive their own citizens who are deported by another country. But in practice, there are often ways to push back. Countries can block deportation flights from landing, decline to issue travel documents to their citizens and refuse to acknowledge that the deportees are their citizens.