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The New U.S. Price Tag for the War Against ISIS: $40 Billion a Year

With the war against ISIS off to a rocky start, there are signs that the Obama administration is getting ready to up the ante substantially on weaponry, manpower and aid to allies – at a cost of an additional $3o billion to $40 billion a year.

Earlier, Gordon Adams, a military analyst at American University, told The Fiscal Times that the mission to stop ISIS will cost $15 billion to $20 billion annually, based on his “back of the envelope” calculations. Other analysts have made similar forecasts. But based on soundings of the defense establishment, Adams said Thursday that the Defense Department would almost certainly request funding of twice that level later this year.

Related: The War Against ISIS Will Explode Our Nation’s Debt

The estimated $30 billion to $40 billion of new spending would come on top of the Pentagon’s $496 billion fiscal 2015 operating budget for personnel and contractors and the roughly $58.6 billion in an “Overseas Contingency Operation” fund that is used to finance U.S. war operations in the Middle East.

The OCO, as it is known, has paid for the protracted U.S. military engagement in the Middle East with borrowing that adds to the long-term U.S. debt. If Adams’ projections are correct, then the OCO would total as much as $80 billion to $90 billion in the coming year.

House Democratic Whip Steny Hoyer (D-MD) has urged the Armed Services and Appropriations Committees to schedule hearings as soon as possible to provide taxpayers with a realistic assessment of what it may cost in the coming decade to battle ISIS -- and gauge the likely impact on the deficit and other spending priorities.

Adams said he has taken into account a number of factors in coming up with his new ISIS war price tag. For one, he said, Defense Secretary Chuck Hagel is determined to persuade Congress to offset recent budget cuts or sequesters mandated under the Budget Control Act that he believes have hurt the country’s defense posture.

Related: Turkey Says Syrian State About to Fall As ISIS Advances

Moreover, the war is proving more complex and challenging than many assumed, and ISIS is proving to be remarkably resilient. Finally, there is a need to bolster NATO and Middle Eastern allies who are backing the U.S. campaign of airstrikes.

“There will be a good deal of that money for air operations, a good deal of that for support on the ground for the Iraqis, and a good deal of that for support on the ground for the Syrian opposition,” Adams said in speculating how the huge surge in spending may be used. “Also, there will be something in there for the Jordanians and other coalition companies that can’t pay their own way and a good deal for replenishing munition stocks that have been reduced by the air operations.”