Stacked bars
The Defense Budget by Military Department
Total obligational authority by department, fiscal years, constant dollars of the latest Green Book, $ billions
Plays the chart through its history. Pauses are where the data set a record or moved most.
U.S. Department of Defense, Comptroller, National Defense Budget Estimates (Green Book), Table 6-3: total obligational authority by fiscal year, war and supplemental funding included. The Navy includes the Marine Corps and the Air Force the Space Force. Constant dollars use the Comptroller’s own deflators. Defense-wide covers agencies outside the three departments (health, missile defense, special operations).
Every defense budget since 1948 in today’s dollars, split among the Army, the Navy and Marine Corps, the Air Force and Space Force, and defense-wide agencies: the Korean War and Vietnam peaks, the 1980s build-up, the post-Cold War drawdown and the wars after 2001.
What this chart reads
- DoD Total Obligational Authority · Army · FY 2027 $ billionsas “Army”latest 2026-09-30
- DoD Total Obligational Authority · Navy (incl. Marine Corps) · FY 2027 $ billionsas “Navy (incl. Marine Corps)”latest 2026-09-30
- DoD Total Obligational Authority · Air Force (incl. Space Force) · FY 2027 $ billionsas “Air Force (incl. Space Force)”latest 2026-09-30
- DoD Total Obligational Authority · Defense-wide · FY 2027 $ billionsas “Defense-wide”latest 2026-09-30
Sources
DoD Total Obligational Authority · Army · FY 2027 $ billions. Source: U.S. Department of Defense, Office of the Under Secretary of Defense (Comptroller), National Defense Budget Estimates for FY 2027 (the "Green Book"), Table 6-3, TOA by Military Department (current and FY 2027 constant dollars): https://comptroller.war.gov/Budget-Materials/ (fy27_Green_Book.pdf). A work of the U.S. Government (17 U.S.C. §105), public domain. Parsed by scripts/v23a/green-book-toa.mjs into src/lib/defense/green-book-toa.ts; loaded by scripts/v23a/load-static.ts each year when the new Green Book appears.
DoD Total Obligational Authority · Navy (incl. Marine Corps) · FY 2027 $ billions. Source: U.S. Department of Defense, Office of the Under Secretary of Defense (Comptroller), National Defense Budget Estimates for FY 2027 (the "Green Book"), Table 6-3, TOA by Military Department (current and FY 2027 constant dollars): https://comptroller.war.gov/Budget-Materials/ (fy27_Green_Book.pdf). A work of the U.S. Government (17 U.S.C. §105), public domain. Parsed by scripts/v23a/green-book-toa.mjs into src/lib/defense/green-book-toa.ts; loaded by scripts/v23a/load-static.ts each year when the new Green Book appears.
DoD Total Obligational Authority · Air Force (incl. Space Force) · FY 2027 $ billions. Source: U.S. Department of Defense, Office of the Under Secretary of Defense (Comptroller), National Defense Budget Estimates for FY 2027 (the "Green Book"), Table 6-3, TOA by Military Department (current and FY 2027 constant dollars): https://comptroller.war.gov/Budget-Materials/ (fy27_Green_Book.pdf). A work of the U.S. Government (17 U.S.C. §105), public domain. Parsed by scripts/v23a/green-book-toa.mjs into src/lib/defense/green-book-toa.ts; loaded by scripts/v23a/load-static.ts each year when the new Green Book appears.
DoD Total Obligational Authority · Defense-wide · FY 2027 $ billions. Source: U.S. Department of Defense, Office of the Under Secretary of Defense (Comptroller), National Defense Budget Estimates for FY 2027 (the "Green Book"), Table 6-3, TOA by Military Department (current and FY 2027 constant dollars): https://comptroller.war.gov/Budget-Materials/ (fy27_Green_Book.pdf). A work of the U.S. Government (17 U.S.C. §105), public domain. Parsed by scripts/v23a/green-book-toa.mjs into src/lib/defense/green-book-toa.ts; loaded by scripts/v23a/load-static.ts each year when the new Green Book appears.
Charts are drawn from Palanor's signal library and recomputed from source data on every view. Transformations (changes, indexing, year-on-year rates) are Palanor's.