Today, the White House officially announced that Turkey would not be allowed to purchase the F-35 Joint Strike Fighter. The US government had warned Turkish President Recep Tayyip Erdoğan that his government’s purchase of S-400 surface-to-air missile systems from Russia would be incompatible with NATO systems and would trigger an exclusion of Turkey from the F-35 program. Turkey was a financial contributor to the F-35 development program and already had pilots in the US in training to fly the aircraft; those pilots were kicked off US training bases in June.
US and NATO partners are concerned that the S-400 systems, supported by Russian technicians, will essentially amount to an intelligence collection system for Russia on NATO aircraft and military operations. But