The US war with #Iran cost $40 billion and returned to the terms of the Obama deal, which #Trump criticizes, - CNN CNN, citing estimates from CSIS analysts, writes that this cost includes ammunition, destroyed equipment, and damage to American bases, but does not include operating costs already budgeted. The largest item is $26 billion in ammunition, including about a thousand Tomahawk missiles at $2.5 million each. As a result, the US received a memorandum and another 60 days of negotiations.