US-Israel Strike Coordination on Iran: Who Decides, What Happens Next

The United States has assembled its largest military force in the Middle East since the 2003 Iraq invasion, and Israel has authorized a second round of strikes on Iran. Two carrier strike groups (USS Abraham Lincoln and USS Gerald R. Ford) are converging on the region. Over 150 combat aircraft have deployed to Jordan, Israel, and at-sea platforms in the past six weeks. Eleven of twelve F-22 Raptors arrived at Israel's Ovda Air Base on February 25 (one returned to Lakenheath with a fuel leak). The Pentagon has placed a $100 million order to replenish bunker-buster bombs used in the June 2025 strikes. This is not a deterrence posture. It is a strike-ready configuration.

The US and Israel are operating on different clocks, with different objectives, and different political incentives, making unilateral Israeli action more likely than a coordinated campaign. Israel's Security Cabinet authorized "Operation Iron Strike" on January 5, 2026. Its trigger is nuclear: Iran's reconstruction of enrichment capacity at Isfahan and the near-completion of the Pickaxe Mountain facility, which may be too deep for existing bunker-busters. The US trigger is political: Trump set a "10 to 15 day" deadline on February 19 and appears to prefer a deal that eliminates enrichment. But the core gap remains unbridged: Iran insists enrichment is a sovereign right; the US demands zero weapons capability. IDF Chief Zamir and Military Intelligence Chief Binder both visited Washington in late January to coordinate target lists, but the decision calendars are not synchronized.

The economic ripple effects are already materializing, regardless of whether a second round of strikes occurs. Shipping insurance through the Strait of Hormuz has risen 60-220% since June 2025 depending on vessel type and flag. Goldman Sachs models Brent peaking at $90/bbl if Iranian supply drops 1.75M bbl/d, $120-130 in a Strait disruption. Saudi Arabia's PIF is cutting capital spending by up to 15%. Every Gulf state has refused to provide airspace or territory for strikes, an unprecedented regional consensus that constrains US operational planning but does not prevent action from sea-based or Jordanian platforms.

This is a synthesis alert, not a response to a single event. Three developments have converged in February 2026 that, taken together, represent the highest probability of renewed military action against Iran since the June 2025 strikes.

Signal 1: Force posture exceeds deterrence requirements. The current deployment, two carrier strike groups, 60+ combat aircraft at a single Jordanian base, F-22s stationed in Israel, THAAD and Patriot batteries repositioned across five countries, matches or exceeds the force assembled for the June 2025 strikes. The $100 million GBU-57 restocking order, disclosed February 12, indicates the Pentagon is replenishing the exact munitions used against Fordow and Natanz eight months ago.

Signal 2: IAEA verification blackout. The IAEA has not accessed Iran's nuclear facilities since June 13, 2025. Director General Grossi stated in November 2025 that "the Agency will not be in a position to provide assurance that Iran's nuclear programme is exclusively peaceful." The last IAEA-verified stockpile (as of June 13, 2025): 440.9 kg of uranium enriched to 60%, enough for multiple weapons if further enriched. Whether this material survived the strikes, was moved, or has been reprocessed is unknown, and the current stockpile may be higher.

Signal 3: Iran is rebuilding. Satellite imagery from December 2025-January 2026 shows active reconstruction at Isfahan, including a new roof structure with features identical to centrifuge production facilities. The Pickaxe Mountain facility south of Natanz, estimated 260-330 feet underground and potentially too deep for existing bunker-busters, is in late-stage construction. Israel's Atomic Energy Commission described the reconstruction as a "race to rebuild."

The US and Israel struck Iran within nine days of each other in June 2025, but they were not running a joint operation. Israel went first (June 13), the US followed (June 22). That sequence matters. In February 2026, the coordination meetings have intensified, but the underlying divergence has not resolved.

Different Triggers

Israel's trigger is nuclear capability. Its Atomic Energy Commission tracks reconstruction at Isfahan and Pickaxe Mountain with satellite imagery. The construction of a facility potentially too deep for existing bunker-busters creates a closing window: if Pickaxe Mountain becomes operational, Israel may lose the ability to destroy Iran's enrichment capacity from the air. This is a hardware problem, not a diplomatic one.

The US trigger is broader. Trump has described three options under consideration, per CNN: diplomacy only, a limited strike on military targets, or a regime change operation. His envoy Witkoff has framed the choice as "deal or consequences." The trigger for US action appears to be the collapse of the Geneva process, not a specific enrichment milestone.

Different Political Calendars

Netanyahu's domestic position is shaped by coalition survival and the doctrinal shift he announced in late 2025: "There is no more containment, no more 'campaign between wars.'" Defense Minister Katz has called for strikes on "all symbols of the regime." The Israeli political incentive favors action.

Trump sits between competing pressures, as the Al Jazeera Centre for Studies observed: "neoconservative hawks who want regime change by force and an America First base that will not support lengthy wars." His instinct, per that analysis, is "quick-in, quick-out punishment that looks decisive without creating obligations." The political incentive favors a deal if one can be reached, and brief strikes if it cannot.

Different Acceptable Outcomes

Historical Precedent

When Israel and the US have disagreed on timing, Israel has acted unilaterally. The Osirak strike in 1981 was opposed by Washington. The 2012 "red line" debate saw Obama pull back from strikes while Netanyahu pushed for them. In June 2025, Israel moved first and the US followed days later. The pattern suggests Israel sets the tempo; the US decides whether to join.

What's Being Overstated

• • Rhetoric vs. Action: Trump's "10 to 15 day" deadline passed without consequence. Deadlines have served as negotiating leverage, not operational triggers. Iran's Strait of Hormuz closure on February 17 lasted hours and oil fell, suggesting markets saw it as theater.
• • Media Amplification: Iran International's claim that a strike is "virtually certain" (citing one unnamed Western source) has been widely recirculated. This is a single-source claim from a Saudi-funded opposition outlet. The diplomatic track remains active.
• • Political Theater: Khamenei's threat that the US "may be struck so hard that it cannot get back up" follows a pattern of deterrence rhetoric that has not been followed by offensive action. Defense Minister Katz's call to "destabilise the regime" plays to domestic coalition politics.
• • Speculation as Fact: Witkoff's claim that Iran is "probably a week away" from bomb-making material contradicts the post-strike reality: Natanz and Fordow are assessed as inoperable. The pre-strike breakout estimate was under one week, but that infrastructure was damaged in June 2025.

The June 2025 strikes were supposed to "set back Iran's nuclear program by approximately two years," per the Pentagon's assessment. Eight months later, the IAEA cannot verify that claim, Iran is rebuilding, and the force assembled for a potential Round 2 is larger than Round 1. Three structural dynamics make this moment different from previous escalation cycles.

The verification gap is the core problem. Without IAEA access to Natanz, Fordow, or Isfahan, no one outside Iran knows the status of the 440.9 kg of 60% enriched uranium. Grossi's February 2026 assessment: "We are not getting access to these places." This means the entire diplomatic and military calculation rests on incomplete information. Israel's satellite imagery shows reconstruction activity, but cannot determine what is happening underground.

The Pickaxe Mountain problem is time-bound. If Iran completes a facility 260-330 feet underground, deeper than Fordow and potentially beyond the penetration capability of the GBU-57, then the window for physically destroying enrichment capacity closes. This creates urgency on the Israeli side that does not exist on the American side. It also explains why the $100 million GBU-57 restocking order matters: the US may need next-generation penetration capability, and restocking with current munitions suggests planning for targets the existing weapon can reach.

The trilateral pact changes the risk calculus. Iran, China, and Russia signed a formal trilateral strategic pact on January 29, 2026. China is supplying HQ-9B surface-to-air missile systems to upgrade Iran's air defenses. Russia is providing intelligence support. Neither intervened directly during the June 2025 war, but the formalized cooperation framework raises the stakes of a second round. A strike that damages Chinese-supplied equipment or kills Russian advisors would create escalation pathways that did not exist eight months ago.

Energy Markets

Brent crude is trading at approximately $71/bbl as of February 25, with Goldman Sachs embedding a $10/bbl geopolitical risk premium in current prices. Iran exports approximately 2 million barrels per day, with 80-90% going to Chinese refineries at an $8-10/bbl discount to global benchmarks.

Shipping and Insurance

The Strait of Hormuz carries approximately 20 million barrels per day, over 20% of global petroleum consumption and 25% of seaborne oil trade. Shipping insurance premiums for Gulf passages have risen 60-220% since the June 2025 strikes. A single VLCC passage now costs $200,000-360,000 in insurance, up from $100,000-125,000 before the conflict. Underwriters are maintaining "scenario pricing" even during diplomatic progress, meaning premiums are unlikely to return to pre-2023 levels.

This compounds the Red Sea disruption. Houthi attacks have reduced Suez Canal traffic by 90% for container shipping, forcing reroutes around the Cape of Good Hope that add 10 days and approximately $7,500/hour in additional fuel costs for Gulf airlines. Egypt's Suez Canal revenue has fallen 45.5% to $3.6 billion. A simultaneous Strait of Hormuz disruption would create a two-chokepoint crisis without modern precedent.

Regional Stability

Gulf states have formed an unprecedented consensus against military escalation. Saudi Arabia, UAE, Qatar, Oman, Turkey, and Egypt are all lobbying against US strikes. MBS personally committed that Saudi airspace and territory would not be used for attacks on Iran. As Chatham House observed, "the greatest risks are now an expansionist and aggressive Israel, and the chaos of a potentially collapsed Iranian state."

This consensus constrains but does not prevent action. The US can operate from sea-based platforms and from Jordan, where Muwaffaq Salti Air Base hosts over 60 combat aircraft. The UK's refusal to allow B-2 bombers to operate from Diego Garcia or RAF Fairford is a more material constraint: it limits the delivery platforms for the GBU-57 bunker-buster.

Financial Markets

Defense stocks have outperformed during Iran-tension periods. RTX (Tomahawk manufacturer) is up 38% over 12 months; Northrop Grumman (B-2 maker) is up 22%. JP Morgan raised RTX's price target to $200 in December 2025. European rearmament spending is a secondary driver, but Iran strike scenarios are directly priced into defense sector valuations.

In the Gulf, Saudi Arabia's PIF is cutting capital spending by up to 15%, has written down $8 billion on giga-projects, and raised $4 billion in London debt markets in January 2026. PIF has divested entirely from global equities. Lower oil prices ($64/bbl Brent vs. $81 in 2024) are squeezing fiscal space, and a strike scenario that temporarily lifts prices could perversely benefit Gulf sovereign wealth funds even as it disrupts regional stability.

The June 2025 Strikes: What Happened

On June 13, 2025, Israel launched Operation Rising Lion, striking Natanz, Isfahan, Arak, and IRGC targets. The above-ground Pilot Fuel Enrichment Plant at Natanz was destroyed. Satellite imagery showed two craters directly above the underground enrichment halls. On June 19, Israel struck Arak's heavy water reactor (no nuclear material was present). On June 22, the US launched Operation Midnight Hammer: seven B-2 Spirit stealth bombers dropped 14 GBU-57 Massive Ordnance Penetrators on Fordow and Natanz. This was the first combat use of the GBU-57. A ceasefire was agreed on June 24.

What the Strikes Achieved

The Pentagon publicly assessed that Iran's nuclear program was set back by approximately two years. However, a classified DIA assessment, reported by CNN, suggested the setback was "maybe a few months." Enriched uranium stockpiles were not confirmed destroyed. Centrifuges were described as "largely intact" at some facilities. Israel's Atomic Energy Commission assessed Fordow as "rendered inoperable." The critical gap: the IAEA has not independently verified any of these claims because Iran suspended cooperation on June 23, 2025.

Iran's Air Defense Capabilities

Iran operates a layered air defense system combining Russian S-300 batteries (4 delivered in 2016, some damaged in October 2024 Israeli strikes), the indigenous Bavar-373 (claimed 300km range, unverified by independent testing), and newly supplied Chinese HQ-9B systems. In February 2025, the IRGC announced integration of S-300 components with Bavar-373 as backups. The system's effectiveness is disputed: claimed capabilities are based on Iranian disclosures without combat validation. Data link synchronization between Russian, Chinese, and indigenous systems remains a challenge per defense analysts.

The Bunker-Buster Problem

The GBU-57 Massive Ordnance Penetrator officially penetrates 60 meters of "unspecified material." Scientific American's analysis suggests actual penetration is closer to 18 meters in reinforced concrete (5,000 psi) and only 7.9 meters in medium-strength rock. Fordow is built 80-100 meters underground. The Pickaxe Mountain facility is estimated at 260-330 feet (79-100m) underground. Iranian research has produced concrete exceeding 30,000 psi. Reports of a dud GBU-57 from the June 2025 strikes suggest Iran may now have access to the weapon's technology, potentially informing hardening measures at Pickaxe Mountain.

Historical Strike Precedents

Osirak, 1981: Israel unilaterally destroyed Iraq's Osirak nuclear reactor over US objections. Set back Iraq's program by years but did not eliminate it. The strike was condemned internationally, including by the US.

Stuxnet, ~2010: Joint US-Israel covert cyber operation that damaged approximately 1,000 centrifuges at Natanz. Delayed the program without kinetic strikes or international fallout. No equivalent covert option currently available given the IAEA access blackout.

2019 Trump Cancellation: Trump ordered, then cancelled, strikes on Iran in June 2019 after Iran shot down a US drone, citing potential 150 casualties as disproportionate. This is the most direct precedent for a Trump-era military bluff.

Obama Syria Red Line, 2013: The credible threat of force led to Russia brokering Syria's chemical weapons disarmament, an outcome no one expected. As Responsible Statecraft observed: "The credible threat of force brought about an opening for diplomacy, which then led to something that no one thought was possible." This precedent is explicitly cited by analysts on both sides of the current debate.