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Turkey’s foreign minister claimed April 3 that his country’s intended purchase of the Russian-made S-400 air defense system will not pose a threat to NATO systems, including the F-35 Joint Strike Fighter. Speaking at an event commemorating NATO’s 70th anniversary in Washington, D.C., Mevlüt Çavuşoğlu said repeatedly that the S-400 sale is “a done deal," adding at one point, “we will not step back from this.” Çavuşoğlu’s remarks come just days after the Pentagon announced it is ceasing deliveries of…
