The [[United States]] is developing a number of new nuclear warheads and modernizing its entire [[nuclear triad]]—replacing Minuteman III with Sentinel ICBMs, Ohio-class SSBNs with Columbia-class, and developing the B-21 bomber. This program is a one-for-one replacement of existing platforms, maintaining current warhead levels without quantitative expansion. | The [[United States]] is developing a number of new nuclear warheads and modernizing its entire [[nuclear triad]]—replacing Minuteman III with Sentinel ICBMs, Ohio-class SSBNs with Columbia-class, and developing the B-21 bomber. This program is a one-for-one replacement of existing platforms, maintaining current warhead levels without quantitative expansion. |