It was left to the USA, which is called the last trump card in Turkey.

On Thursday, a bipartisan group of US senators asked President Joe Biden to delay the sale of F-16 fighter jets to Turkey until Sweden and Finland approve their NATO membership bids. In response, the official representative of the President of Turkey, İbrahim Kalın, said that preventing the sale of F-16s would only harm the United States, in which case Ankara would continue to develop its defense industry. According to Kalyn, if Congress ties the sale of the fighter jet to the entry of the two countries into NATO, then they can wait a long time.