Overnight Defense: Air Force outlines plan for biggest force since end of Cold War | Trump admin slashes refugee cap | Mattis accuses Russia of meddling in Macedonia's NATO bid

Happy Monday and welcome to Overnight Defense. I'm Rebecca Kheel, and here's your nightly guide to the latest developments at the Pentagon, on Capitol Hill and beyond.THE TOPLINE: The Air Force wants to add 74 squadrons and 40,000 airmen...