Analysis of the FY 2021 Defense Budget from the CSIS Defense Budget Analysis program provides an in-depth assessment of the Trump administration's request for national defense funding in FY 2021. The analysis addresses overall trends in the defense budget, changes in the FY 2021 request, and issues for Congress and the next administration to consider. It also covers the budgets of the National Nuclear Security Administration and the Space Force.

The authors analyze various approaches to speed acquisition of military capabilities and keep pace with evolving threats, assess these approaches' suitability for different conditions and acquisition types, and identify implementation issues.