; Whereas Turkey announced an agreement to acquire the S–400 air and missile defense system from Russia in July 2017 and has publicly stated it could take delivery as early as July 2019; Whereas section 231 of the Countering America’s Adversaries Through Sanctions Act of 2017 (CAATSA) requires the President to impose sanctions on any individual or entity that engages in a significant transaction with the Russian defense or intelligence sector; Whereas the United States Government has developed an attractive alternative offer to provide Turkey with a strong, capable, NATO-interoperable air and missile defense system that meets Turkey’s defense requirements; Whereas Turkey’s planned acquisition of the Russian-made S–400 undermines the security of the United States and NATO allies, weakens the United States-Turkey relationship, and is incompatible with Turkey’s plan to operate the F–35 Joint Strike Fighter and participate in F–35 production; Whereas the F–35 Joint Strike Fighter program is the world’s leading 5th generation fighter aircraft program with more than a trillion dollars in investment among United States and international partners; Whereas Turkey has been a critical partner in the F–35 Joint Strike Fighter program since 2002, with significant industrial participation, including manufacturing of certain F–35 components, plans to host a maintenance facility for regional F–35 operators, investments of more than $1.25 billion in the program, and plans to procure 100 F–35As; and Whereas in addition to the F–35 Joint Strike Fighter, Turkish defense acquisition programs that could be affected by sanctions include the Patriot air and missile defense system, CH–47F Chinook heavy lift helicopter, UH–60 Black Hawk utility helicopter, and F–16 Fighting Falcon aircraft: Now, therefore, be it