The Pentagon said Friday that military operations in Iraq have cost more than $560 million so far, including the surveillance flights and airstrikes that began on June 16 .

Prior to Friday's announcement, a military officials said the U.S. operation in Iraq had so far included relief drops of 636 bundles of food, water and medical supplies, at least 102 airstrikes and about 60 reconnaissance aircraft sorties per day. In addition, more than 800 troops have been sent to Iraq to evaluate the situation.

The Pentagon estimated its costs for the seven-month operation at about $1 billion, she said.

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