Erdogan and Trump discuss Russian S-400s

Donald Trump and Turkish President Recep Tayyip Erdogan spoke Monday in a telephone conversation about the Turkish proposal for a joint working group on the Russian air defense system S-400 that Ankara intends to acquire.

"Our honorable President has raised the proposal to establish a working group on the purchase of S-400 defense systems from the Russian Federation," the Turkish Presidency said in a statement.

For months now, the United States and Turkey, members of NATO, have been opposing this issue, which is provoking resistance from Washington.

The Americans argue that the air defense systems proposed by the Russians are not compatible with those of the Atlantic Alliance and are contrary to the safety of their F-35 fighter aircraft.

The Turkish authorities explain that a working group could evaluate the consequences of an acquisition of the S-400 systems. They said Friday they have no answers from their American counterparts on this topic.......