The Congressional Budget Office (CBO) projects that U.S. federal deficits will increase to 4.9% of GDP by 2026 due to rising mandatory spending in social security and healthcare programs. The Department of Defense (DoD) faces significant budget constraints under the Budget Control Act, with projected costs of defense programs exceeding these caps by $107 billion from 2017 to 2020. Additionally, if costs for procurement and operations continue to rise, funding needed to implement DoD's plans could exceed BCA limits by $162 billion during the same period.