President Donald Trump for the first time since returning to office will send weapons to Kyiv under a presidential power frequently used by his predecessor, two sources familiar with the decision said on Thursday, a move suggesting new interest by the president in defending Ukraine.

Before strapping into the cockpit of the U.S. Air Force's B-2 Spirit stealth bomber for missions that can stretch beyond 40 hours, pilots undergo weeks of preparation that focuses not only on flight plans, but what to eat.