But in fact they have employed/supported ISIS, al Qaeda (Nusra), al Sham, and Uygur Terrorists. And they are now the home of the leadership of the Muslim Brotherhood Terrorists.
Turkey considers YPG/YPJ (Syrian Kurd) element of the SDF as extensions of the PKK. The US never had designated the YPG/YPJ as terrorists.
We can, and should, halt all Foreign Military Sales (FMS) and suspend execution of existing contracts should Turkey threaten to shell in the vicinity of our troops. All spare parts, technical support and weapons shipments should cease. All Turkish military personnel training or studying in the U.S. should stop and they should be sent packing. Decrease their IMET funding to zero.