In the long ledger of American military engagement, the operations against Iran have now registered a cost of at least $43.6 billion — a figure the Pentagon places even higher, at $45.1 billion, in its accounting to Congress. These numbers, separated by a $1.5 billion gap that reflects the layered complexity of how war is measured, mark this conflict as one of the more expensive undertakings in recent American military history. Beyond the dollars, the strain has become tangible: allied nations are being told to expect delays in missile deliveries, a quiet signal that sustained operations resha