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With the international effort to train Ukrainian pilots on F-16s set to begin soon, the U.S.’ top military officer said Thursday it’s still “premature” to give a specific date on when advanced fighter aircraft could be employed in the fight against Russia’s invasion. “There's a lot of work to do. You have to do language training. You have to do pilot training. You've got to get all the systems set in place. So those wheels are in motion, but we're…
