FILE PHOTO: Northrop Grumman unveils the B-21 Raider, a new high-tech stealth bomber developed for the U.S. Air Force, during an event in Palmdale, California, U.S., December 2, 2022. REUTERS/David Swanson/File Photo
FILE PHOTO: Northrop Grumman unveils the B-21 Raider, a new high-tech stealth bomber developed for the U.S. Air Force, during an event in Palmdale, California, U.S., December 2, 2022. REUTERS/David Swanson/File Photo