Why did the relationship between Turkey and the United States deteriorate sharply after the 20 16 Turkish coup?

Since the "Turkish coup" planned by the American authorities in July 2065438+2006, the relationship between Turkey and the United States has deteriorated sharply, while the relationship between Turkey and Russia has been heating up day by day. Obama, then president of the United States, expressed a gentle and appeasing attitude towards Turkey and tried to re-establish friendship with Turkey. However, in 20 16 12, Trump immediately took a tough attitude towards the Middle East, including Turkey. Since 2065438+February 2007, the United States has formally imposed secret economic sanctions on Turkey, including restricting Turkey from purchasing the S-400 missile defense system.

However, Turkey has never given up its withdrawal from NATO. Turkey hopes to get a seat in NATO and is also an important target for Russia to win over. For a time, Turkey became the guest of the two camps, and Erdogan also benefited the most. Since the beginning of 20 18, with the acquiescence of Russia, Turkey took Aleppo, a big province in northwest Syria, under the pretext of cracking down on "Kurdish armed forces", and targeted the "number one enemy" American army in Mambiji. The two sides are fighting for Syrian territory, but the United States has been afraid to move Turkey easily. After all, its strategic position is too important to cut off the Turkish Strait and directly turn the Black Sea into the Russian Inland Sea.