WASHINGTON ( CNN ) -- The Obama administration will ask Congress for another $ 83.4 billion to fund the wars in Iraq and Afghanistan through the end of September , Democratic congressional sources said Thursday . President Obama 's spending measure is likely to be the last supplemental request submitted to pay for the wars . The request is expected to pay for those conflicts for the rest of the 2009 budget year , two Democratic congressional sources said . The money would bring the running tab for both conflicts to about $ 947 billion , according to figures from the Congressional Research Service . More than three-quarters of the $ 864 billion appropriated so far has gone to the war in Iraq , the agency estimated . Since taking office in January , President Obama has announced plans to shift troops out of Iraq and beef up U.S. forces in Afghanistan , where American troops have been battling al Qaeda and Taliban fighters since al Qaeda 's 2001 attacks . In a letter to House Speaker Nancy Pelosi , Obama said the situation in Afghanistan and neighboring Pakistan `` demands urgent attention . '' `` The Taliban is resurgent , and al Qaeda threatens America from its safe haven along the Afghan-Pakistan border , '' Obama wrote in submitting the funding request . `` There is no question of the resolve of our military women and men . Yet , in Afghanistan , that resolve has not been matched by a comprehensive strategy and sufficient resources , '' Obama wrote . About $ 75 billion of the latest request would pay for military operations , including $ 9.8 billion for body armor and protective vehicles and $ 11.6 billion to replace worn-out equipment . The rest would go to diplomatic programs and development aid -- including $ 1.6 billion for Afghanistan , $ 1.4 billion for Pakistan and $ 700 million for Iraq . The request would also provide about $ 800 million for the Palestinian Authority , including humanitarian aid for Gaza , the Hamas-ruled territory that was heavily bombarded by Israel in December and January ; $ 800 million to support U.N. peacekeeping missions in Africa ; and $ 30 million to the Department of Justice to manage the closure of the U.S. prison camp at Guantanamo Bay , Cuba . The supplemental spending bill is likely to be the last such request submitted to Congress to pay for the wars , White House spokesman Robert Gibbs said . While the Bush administration relied on supplemental spending bills to fund the conflicts , Obama began including war spending in his 2010 budget . The president urged Congress to move quickly on the request `` and not to use the supplemental to pursue unnecessary spending . '' But Rep. Lynn Woolsey , a prominent anti-war Democrat , said the requested funding would `` prolong our occupation of Iraq through at least the end of 2011 , '' when U.S. troops are scheduled to leave the country , `` and it will deepen and expand our military presence in Afghanistan indefinitely . '' `` Instead of attempting to find military solutions to the problems we face in Iraq and Afghanistan , President Obama must fundamentally change the mission in both countries to focus on promoting reconciliation , economic development , humanitarian aid , and regional diplomatic efforts . '' Last month , Obama announced the United States plans to withdraw most of its troops from Iraq by the end of August 2010 . A residual force of between 35,000 to 50,000 troops will remain until December 31 , 2011 . There are 142,000 American troops in Iraq now . Obama has ordered the deployment of 17,000 troops to fight the Taliban in the south and east and 4,000 more to train Afghan troops .
NEW : More than $ 2 billion would pay for body armor and protective vehicles . NEW : About $ 9.8 billion would go to aid for Afghanistan , Afghanistan and Iraq . NEW : Democrat lawmaker says funds would prolong U.S. occupation of U.S. . Funds would bring tab for Iraq and Afghanistan wars to $ 947 billion .