Estimated Cost of the Administration's Proposal to Increase the Army's and the Marine Corp's Personnel Levels [open pdf - 75KB]
From the Summary: "In January 2007, the Administration announced plans to permanently increase the size of the active-duty Army to 547,400 personnel and the Marine Corps to 202,000 over the next five years. The Administration also plans to increase the size of the Army Reserve and National Guard. The cost of the Administration's proposal to increase the size of the armed forces depends on the personnel levels it is being measured against. The 2006 Quadrennial Defense Review (QDR) and other long-term planning documents issued by the Department of Defense (DoD) recommended an end strength of 482,400 personnel for the Army and 175,000 for the Marine Corps. Relative to those levels, the Administration's plan represents an increase of 65,000 and 27,000 personnel for the Army and Marine Corps, respectively (see Table 1). The combined increases for the Army Reserve and National Guard would total about 9,200 personnel. The plan also encompasses initiatives to reallocate military personnel from overhead functions to the operational force. To support operations in Iraq and Afghanistan and to facilitate the reorganization of their forces, the Army and the Marine Corps are currently exceeding the personnel levels specified in the QDR through the use of authorities provided by the Congress in title 10 of the U.S. Code."
Congressional Budget Office: https://www.cbo.gov/