Iran War Cost Timeline
Projected year-by-year breakdown of how costs would accumulate in a US-Iran conflict.
Year 1: Initial Campaign ($300-500B)
The opening phase would involve massive air and naval campaigns to neutralize Iran's air defenses, missile sites, and naval capabilities. This phase would be the most expensive per-day period, with costs driven by precision munitions, carrier operations, and troop mobilization.
Years 2-3: Sustained Operations ($200-400B/year)
If the conflict extends beyond initial strikes into ground operations or sustained occupation, costs would remain elevated with ongoing combat operations, counter-insurgency, and base construction.
Years 4-5: Stabilization Phase ($100-200B/year)
Transitioning from active combat to stability operations, reconstruction, and training of local security forces. Historical patterns from Iraq suggest this phase is often longer and more costly than initially planned.
Years 5-10: Drawdown & Ongoing Costs ($50-100B/year)
Gradual reduction of forces while maintaining a regional presence. Veterans' care costs begin to escalate significantly during this period.
Years 10-30: Long-term Obligations ($30-60B/year)
Veterans' healthcare and disability costs peak decades after conflict. Interest payments on war borrowing continue to accumulate. Brown University research shows these long-tail costs often exceed the original combat spending.