While it is unknown when the B-2 will retire, the aging stealth bomber may end up flying alongside the B-21.

Pentagon Editor Lee Hudson joined the first tour of Lockheed Martin’s THAAD facility in Troy, Alabama.

On Aug. 18, the Pentagon conducted a successful flight test of a ground-launched conventional cruise missile with a range of more than 500 km (300 mi.)—a weapon previously banned under the now-defunct Intermediate Range Nuclear Forces Treaty.