President-elect Trump took issue with fees charged to use the Panama Canal, a vital shipping route, on Saturday night, claiming that he will demand oversight of the waterway be given back to the U.S. when he returns to office if it’s not changed. 

“The fees being charged by Panama are ridiculous, especially knowing the extraordinary generosity that has been bestowed to Panama by the U.S,” Trump wrote on Truth Social. “This complete ‘rip-off’ of our Country will immediately stop.”

Panama charges tariffs for boats and ships to pass through its canal. Fees vary based on the size and purpose of vessels, and the charges range from as low as $0.50 to as high as $300,000.

“If the principles, both moral and legal, of this magnanimous gesture of giving are not followed, then we will demand that the Panama Canal be returned to us, in full, and without question,” Trump continued. “To the Officials of Panama, please be guided accordingly!”

The U.S. uses the Panama Canal more than any other country. Control of the canal was transferred from the U.S. to the Central American country in 1999 as a result of a 1979 treaty under former President Carter, which Trump said was a foolish decision. 

“When President Jimmy Carter foolishly gave it away, for One Dollar, during his term in Office, it was solely for Panama to manage, not China, or anyone else,” he stated. “It was likewise not given for Panama to charge the United States, its Navy, and corporations, doing business within our Country, exorbitant prices and rates of passage.” 

The construction of the Panama Canal began in 1904 under President Theodore Roosevelt. The waterway was built to provide a speedy way to ship goods between the Atlantic and Pacific Oceans. At the time, it was viewed as one of the most critical foreign policy achievements.

Trump, on Saturday, called for a “secure” Panama Canal, underscoring its importance to American national security and the economy.

“The United States has a vested interest in the secure, efficient, and reliable operation of the Panama Canal, and that was always understood. We would and will NEVER let it fall into the wrong hands! It was not given for the benefit of others, but merely as a token of cooperation with us and Panama,” he added, stating that the country is being treated “in a very unfair and injudicious way.”