WASHINGTON (AP) — The United States will withdraw about 5,000 troops from Germany in the next six to 12 months, the Pentagon said Friday, fulfilling President Donald Trump’s threat as he clashes with the German leader over the U.S. war with Iran.

Trump had threatened to withdraw some troops from the NATO ally earlier this week after Chancellor Friedrich Merz said the U.S. was being “humiliated” by the Iranian leadership and criticized Washington’s lack of strategy in the war.

Pentagon spokesman Sean Parnell said in a statement that the “decision follows a thorough review of the Department’s force posture in Europe and is in recognition of theater requirements and conditions on the ground.”

Germany hosts several U.S. military facilities, including the headquarters of its European and Africa commands, Ramstein Air Base and a medical center in Landstuhl, where casualties from the wars in Afghanistan and Iraq were treated. U.S. nuclear missiles are also stationed in the country.

The number of troops leaving Germany would be 14% of the 36,000 American service members stationed there.

Nico Lange from the Center of European Policy Analysis told The Associated Press earlier this week that they primarily serve U.S. interests, including “the projection of American power globally,” rather than helping with the defense of Germany.

Trump ignored questions from reporters about the withdrawal on Friday as he boarded Air Force One in Ocala, Florida, following a rally to tout his economic agenda.

Trump made a similar threat in his first term, saying he would pull about 9,500 of the roughly 34,500 U.S. troops who were then stationed in Germany, but he didn’t start the process.