To amend title 10, United States Code, to authorize advance appropriations for military personnel, reserve personnel, and National Guard personnel accounts of the Department of Defense, generally title I of the annual Department of Defense appropriations Act.

Requires that, for each fiscal year beginning with FY2012, discretionary new budget authority provided in an appropriations Act for the military personnel accounts of the Department of Defense (DOD) shall: (1) be made available for that fiscal year; and (2) include, for each account, advance discretionary new budget authority that first becomes available for the first fiscal year after the budget year.

Directs the Secretary of Defense to: (1) include in annual budget documents detailed estimates of the funds necessary for the military personnel accounts for the fiscal year following the fiscal year for which the budget is submitted, and (2) report annually to Congress on the sufficiency of DOD resources for the next fiscal year for the provision of military pay and allowances for regular and reserve military personnel.