The United States tests its first thermonuclear device at Eniwetok in the Marshall Islands. The device, code-named “Mike,” has a yield of 10.4 million tons of TNT, 1,000 times more powerful than the bomb dropped on Hiroshima in World War II.
The rate of building B-21 bombers would speed up if the fiscal 2026 defense budget passes. But it remains unclear how much capacity would be added, and whether the Air Force would simply build the bombers faster, or buy more.