B-21 Raider: Will the U.S. Air Force Build Enough of Them?
Experts have suggested that the U.S. Air Force needs 300 bombers to engage China in a war – but yet, as the B-21 Raider comes online, the service may not afford to maintain its older B-1 and B-2s flying. Thus, the bomber fleet will get smaller before it gets bigger.
Source: nationalinterest.org