United States - Government current expenditures: Federal: National defense was 856.31000 Bil. of $ in January of 2024, according to the United States Federal Reserve. Historically, United States - Government current expenditures: Federal: National defense reached a record high of 856.31000 in January of 2024 and a record low of 44.04100 in January of 1959. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Government current expenditures: Federal: National defense - last updated from the United States Federal Reserve on April of 2026.