Reuters: Turkey asks U.S. to buy 40 F-16 jets to upgrade Air Force -sources

Turkey has made a request to the U.S. to buy 40 Lockheed Martin-made F-16 fighter jets and nearly 80 modernization kits for its existing warplanes, as the NATO ally looks to modernize its Air Force after the purchase of F-35 jets fell through, sources familiar with the matter said.