Here is a summary of the Wall Street Journal article concerning risks of a major operation against Iran
Pentagon warnings—led by Gen. Dan Caine (Chairman of the Joint Chiefs of Staff)—about the risks of military action against Iran, especially a prolonged or sustained campaign. These are framed as standard, conservative military assessments provided to President Trump and civilian leaders during contingency planning
Main risks highlighted:
U.S. and allied casualties — Significant potential losses from Iranian retaliation, including missile strikes on U.S. bases across the Middle East, attacks on troops, or proxy actions by groups like Hezbollah and Hamas targeting U.S. personnel, embassies, or Americans abroad. Iranian threats include sinking U.S. warships, and officials note Iran would likely "fire everything it has" to defend the regime.
Vulnerability during operations — American pilots exposed to Iranian air defenses during repeated bombing runs; Iranian missiles/drones targeting U.S. forces or allies (e.g., Israel, as seen in prior conflicts like the 12-day war in June 2025).
Depleted munitions and air defenses — Exhaustion of limited stockpiles of interceptors (Patriot, THAAD, SM-3), potentially lasting only ~2 weeks against intense Iranian missile volleys. This strains defenses for regional partners and impacts readiness for other threats (e.g., future conflict with China). Past events (e.g., defending Israel from Iranian barrages in June 2025; prolonged Yemen/Houthi campaign in spring 2025) already revealed "alarming gaps" and forced conservation of scarce weapons.
Overtaxed force and readiness strain — Overextension of personnel and assets in a complex, prolonged operation. Examples include the USS Gerald R. Ford's record-breaking extended deployment (at sea since June 2025, potentially 11 months), with issues like sewage problems, fatigued/overtaxed sailors (some considering leaving the Navy), and risks of accidents/mistakes from high operational tempo (e.g., USS Harry S. Truman losing jets in Red Sea operations in 2025 due to similar strain).
Broader escalation and regional war — High potential for a sustained campaign to draw the U.S. into a wider Middle East conflict, far more complex/dangerous than shorter operations (e.g., recent Venezuela action). Limited allied support increases burdens on U.S. forces; retaliation could complicate protection of partners and lead to entanglement.
Strategic trade-offs — Heavy use of resources/munitions in Iran could undermine preparations for higher-priority contingencies (e.g., China), with prior commitments to Ukraine/Israel already straining supplies.
Options range from limited initial strikes to multi-day/week aerial campaigns (potentially regime-toppling), but prolonged ones carry the highest costs in lives, resources, and strategic positioning.
https://www.wsj.com/politics/national-se...lista_pos1
IMO, the limitations and risks point to a limited, but powerful punch to Iran's ambitions.