The Department of Defense has announced its intent to restructure the Sentinel intercontinental ballistic missile program, one part of the United States’s nuclear triad, due to an unexpected significant increase in spending.

In January, the department informed Congress about the much higher cost than it had expected as required under the Nunn-McCurdy statute, which mandates the Defense Department inform Congress any time one of its program’s cost balloons by 25% or more over the current Acquisition Program Baseline.