structural:summarization, information:extraction, quality:corruption
Modern era

Currently, only the United States Air Force, the Russian Aerospace Forces ' Long-Range Aviation command, and China's People's Liberation Army Air Force operate strategic heavy bombers. Other air forces have transitioned away from dedicated bombers in favor of multirole combat aircraft.

At present, these air forces are each developing stealth replacements for their legacy bomber fleets, the USAF with the Northrop Grumman B-21, the Russian Aerospace Forces with the PAK DA, and the PLAAF with the Xian H-20. As of 2021, the B-21 is expected to enter service by 2026–2027. The B-21 would be capable of loitering near target areas for extended periods of time.