Turkey’s foreign minister said it will launch a military attack against US-allied Kurds in Syria even if the Trump administration delays withdrawing American troops from the war-torn country.

“If the [withdrawal] is put off with ridiculous excuses like Turks are massacring Kurds, which do not reflect the reality, we will implement this decision,” Mevlut Cavusoglu told state media Thursday, according to the Associated Press.

Ankara considers the Kurdish forces in Syria who have been trained by and are assisting US troops in the fight against Islamic State militants to be linked to groups trying to create instability inside Turkey.

President Trump last month announced that he would pull out the 2,000 US troops in Syria, a controversial decision that led to the resignation of Defense Secretary James Mattis, who wrote that the commander-in-chief was abandoning US allies.

National security adviser John Bolton, speaking in Israel on Sunday, said the administration would delay the withdrawal until Turkey assures the safety of Kurdish fighters and ISIS is defeated.

Earlier this week, Turkish President Recep Tayyip Erdogan refused to meet with Bolton during a trip to Ankara and said he is making a “serious mistake.”

“Bolton has made a serious mistake and whoever thinks like this has also made a mistake. It is not possible for us to make compromises on this point,” Erdogan said Tuesday in a speech to parliament.

He also doubled down on his recent threats to attack the Kurds.

“If they are terrorists, we will do what is necessary no matter where they come from,” Erdogan said.