Director, Joint Strike Fighter Program, Vice Admiral Mathias W. “Mat” Winter, told U.S. lawmakers that “future potential Foreign Military Sales customers (for the F-35) include Singapore, Greece, Romania, Spain and Poland.”

Confronting with Turkey, for S400 Air Defence System, The United States is considering expanding sales of LM’s F-35 fighter jets to five new nations including Romania, Greece and Poland as European allies bulk up their defences in the face of a strengthening Russia, a Pentagon official told Congress on Thursday.

In written testimony submitted to the U.S. House of Representatives, Vice Admiral Mathias Winter – the head of the Pentagon’s F-35 office – said that “future potential Foreign Military Sales customers include Singapore, Greece, Romania, Spain and Poland.”

According to information gathered during recent defence budget meetings held in US Senate house, the acquisition of F-35 costs less than its maintenance. US therefore prefers to buy further F-15 to balance the cost.