The $1T Iran War Tab Is America’s Next Fiscal Time Bomb

America’s war tab is starting to look like the world’s longest open bar — and there’s no last call in sight. Harvard Kennedy School’s Linda Bilmes says the conflict could top $1T over the next decade, dwarfing the Pentagon’s likely understated $11.3B bill for just the first six days of fighting. With a US blockade now tightening around Iranian ports after peace talks collapsed, the meter might still be running.

• US interceptors from Lockheed MartinLMT
  and BoeingBA
  cost ~$4M each vs ~$30K Iranian drones — a ~133x gap that steadily drains budgets with every exchange.
• The White House has requested a $1.5T defense budget (the largest since WWII), plus $200B for Iran operations, with at least ~$100B/year in added spending likely regardless.

The long war theory: Iran’s closure of the Strait of Hormuz has already triggered what the International Energy Agency calls “the greatest global energy security threat in history.” However, Bilmes says the real costs come later, from veteran care, rebuilding, and rising debt. She notes, “The interest costs alone will add billions of dollars to the total cost of this war,” adding, “these are costs we are explicitly passing on to the next generation.”