Vietnam has revved up South China Sea land reclamation efforts this year, beginning construction on eight previously untouched Spratly Islands features.
The service hopes having two B-21s at Edwards Air Force Base will allow it to begin testing the bomber's weapons integration and critical mission systems.
The LGM-35A Sentinel has run into severe cost overruns and schedule delays that could force the Air Force to keep Minuteman IIIs operational years longer.