US-Israel Military Operations Against Iran: Escalation Trajectories and Regional Fallout

The Strikes Have Already Begun

What was anticipated as an imminent military confrontation has now materialized. According to Articles 2 and 4, the United States and Israel launched coordinated strikes against Iran beginning on Saturday, February 28, 2026, with operations continuing into Sunday under the codenames "Epic Fury" and "Roaring Lion." US Central Command (CENTCOM) confirmed ongoing operations, stating the "Iranian regime was warned" and that they are taking "swift and decisive action" (Article 4). Israeli Defense Forces (IDF) targeted ballistic missile forces and air defense systems in western and central Iran, marking a dramatic escalation in the decades-long shadow conflict between these adversaries.

The Strategic Context

This military action follows weeks of buildup documented across multiple sources. Articles 6 and 7 reported the deployment of the USS Gerald R. Ford carrier strike group near Israeli waters, evacuation of non-essential US personnel from Israel, Iraq, Qatar, and Bahrain, and urgent warnings for American staff to leave "TODAY" (Article 7). The evacuation of personnel from regional bases described in Articles 2 and 20—including Al Udeid Air Base in Qatar, Camp Arifjan in Kuwait, and Al Dhafra in the UAE—signaled that US forces were clearing vulnerable positions ahead of expected Iranian retaliation. According to Article 5, President Trump is openly pursuing "externally supported regime change from within," representing an unprecedented escalation in stated US objectives toward Iran. This goes beyond previous limited strikes to an explicit goal of toppling the Islamic Republic's government.

Iran's Retaliatory Capabilities and Likely Responses

Despite being "outgunned" militarily (Articles 11, 18, 19), Iran retains significant capacity to inflict regional damage. Analysis from the Alma Research and Education Center, cited in Articles 12 and 13, identifies Israel and US military bases as Iran's top retaliatory targets. Even after losses during the June 2025 "12-Day War," Iran reportedly maintains hundreds of missiles capable of reaching Israel and a larger arsenal of shorter-range systems threatening US bases throughout the Gulf region. **Predicted Iranian Response Vectors:** 1. **Direct Missile Strikes on Israel**: Article 16 warns that Iran could launch up to 500 missiles simultaneously in a preemptive or retaliatory strike—far exceeding the dozen or two fired at once during the previous conflict. Israeli military leaders have stated this scenario is "unacceptable" and "not an option." 2. **Attacks on US Regional Bases**: Articles 8 and 12 emphasize that American military installations in Bahrain, Qatar, Kuwait, and the UAE remain vulnerable. Iran's UN ambassador explicitly stated that "all bases, facilities and assets of the hostile force in the region" would be legitimate targets (Article 18). 3. **Proxy Mobilization**: Articles 12 and 13 predict Hezbollah in Lebanon will play the largest role among Iranian proxies, with potential involvement from Yemeni Houthis. These groups could conduct attacks against Israeli cities, infrastructure, airports, and military sites. 4. **Strait of Hormuz Closure**: Multiple articles (11, 18, 19) note Iran's threats to close this critical waterway for global oil trade, with claims of partial closure during recent military drills. This would trigger immediate global economic consequences. 5. **Asymmetric Warfare**: Articles 12 and 13 highlight the potential for terror attacks, sabotage operations within Israel, and strikes against Israeli diplomatic personnel abroad.

The Regime Change Gambit

Article 5's revelation that Trump is pursuing regime change introduces maximum-stakes dynamics. Article 17 notes that Iran is reportedly reinforcing border areas with short-range missiles and replacing systems destroyed in June, suggesting preparation for sustained conflict. However, the regime faces internal vulnerabilities: Article 11 mentions recent anti-government protests, while Article 10 notes Iran's strategic weakness despite its missile capabilities. The critical question is whether external military pressure will catalyze internal uprising or trigger nationalist rallying around the regime—a calculation that has failed repeatedly in Middle Eastern interventions.

Diplomatic Pathways Narrowing

Article 15 reveals a troubling dynamic: senior Trump advisers are "privately arguing that an Israeli attack would trigger Iran to retaliate, helping muster support from American voters for a U.S. strike." This suggests a preference for engineering a casus belli rather than genuine diplomatic resolution. Article 16 confirms that "the primary question is becoming when and how the US attacks," indicating diplomacy is viewed as increasingly unlikely to succeed.

Regional and Global Consequences

The immediate impact is already visible. Article 3 reports "hundreds of thousands of passengers stranded" due to airspace closures and flight disruptions. The concentration of US forces described in Articles 2, 9, and 20—with a second carrier group reportedly en route—represents the largest American military presence in the region in years. Article 17's analysis warns that while Israel survived intense strikes during the 12-Day War, "Iran is 75 times larger than Israel," suggesting the scale and duration of potential conflict far exceeds previous engagements.

What Comes Next

The transition from threatened strikes to actual military operations fundamentally changes the trajectory. With operations already underway and regime change as the stated objective, this is no longer a limited punitive action but the opening phase of a sustained campaign. Iran faces an existential decision: accept potential regime collapse or escalate dramatically to impose costs that force negotiation. The next 72 hours will likely determine whether this remains a targeted military operation or explodes into the regional war that Iranian officials have promised and that Article 5 describes as "an unprecedented war scenario."