A Colombian soldier stands guard at the border between Venezuela and Colombia, after U.S. President Donald Trump said the U.S. has struck Venezuela and captured its President Nicolas Maduro, in Cucuta, Colombia, January 3, 2026. REUTERS/Luisa Gonzalez Purchase Licensing Rights, opens new tab ABOARD AIR FORCE ONE, Jan 4 (Reuters) - U.S. President Donald Trump on Sunday threatened military action against Colombia's government, telling reporters that such an operation "sounds good to me." "Colombia is very sick, too, run by a sick man, who likes making cocaine and selling it to the United States, and he's not going to be doing it very long," Trump told reporters aboard Air Force One, in an apparent reference to Colombia's President Gustavo Petro. The Reuters Tariff Watch newsletter is your daily guide to the latest global trade and tariff news. Sign up here. Asked directly whether the U.S. would pursue a military operation against the country, Trump answer...