In the early morning hours of February 28, 2026, the United States, operating in coordination with Israel, initiated a large-scale military strike against multiple targets inside Iran. The operation marked a significant escalation in tensions that had been building for months following stalled nuclear negotiations and growing concerns over Iran’s expanding ballistic missile capabilities.
According to defense officials, the first wave of strikes began shortly after 9:45 a.m. local time in Iran, which corresponded to approximately 1:15 a.m. Eastern Time in the United States. U.S. naval vessels positioned in regional waters launched long-range cruise missiles aimed at Iranian air defense systems and radar installations. Within minutes, Israeli and American aircraft entered Iranian airspace to carry out precision strikes against additional targets.
The initial targets included missile production facilities, air defense networks, military command centers, and infrastructure believed to be linked to Iran’s nuclear and ballistic missile programs. Analysts describe the opening phase as an effort to disable Iran’s defensive capabilities before broader strikes could be conducted.
Explosions were reported in Tehran and several other major cities within the first hour of the operation. Iranian air defenses activated nationwide, though early assessments indicated that a number of those systems were damaged or destroyed in the first wave.
By mid-morning local time, Iranian state media confirmed that multiple senior military officials had been killed. Later reports indicated that Iran’s Supreme Leader, Ayatollah Ali Khamenei, was among those killed in a strike on a secured compound in Tehran. The loss of the country’s highest authority created immediate uncertainty regarding leadership succession and command structure inside Iran.
The strikes followed months of deteriorating diplomatic efforts between Iran and Western governments. Negotiations aimed at limiting Iran’s uranium enrichment and missile development programs had stalled earlier this year. U.S. officials had publicly warned that continued advancement of Iran’s missile capabilities posed a growing security risk. In the weeks leading up to the operation, American military assets, including naval strike groups and long-range bombers, were repositioned within reach of Iranian territory.
Iran responded within hours of the initial assault. By early afternoon local time, ballistic missiles and armed drones were launched toward Israeli territory and toward locations hosting U.S. military personnel across the Gulf region. Air defense systems in Israel were activated, and U.S. bases throughout the Middle East moved to heightened alert status.
Regional governments began implementing emergency security measures as the scope of the confrontation became clear. Commercial air traffic was rerouted, and several countries issued travel advisories warning citizens to avoid the region.
Casualty figures remain fluid. Iranian authorities have reported hundreds of deaths and injuries resulting from the strikes, including military personnel and civilians. Damage assessments indicate impacts on transportation infrastructure, communications facilities, and energy installations in multiple provinces.
Financial markets reacted quickly to the escalation. Oil prices rose amid concerns about potential disruptions to shipping lanes in the Persian Gulf, particularly the Strait of Hormuz, a critical corridor for global energy transport. Defense analysts warned that any attempt to close or disrupt that passage could have significant economic consequences worldwide.
As of this writing, military operations remain active. Additional strikes have been reported following the initial wave, suggesting that the campaign was designed as a sustained effort rather than a single limited action. Iranian forces continue to signal retaliation, increasing the likelihood of further exchanges in the coming days.
No ground invasion has been announced, and current operations appear limited to aerial and missile engagements. However, the killing of Iran’s supreme leader and senior command officials has introduced an unpredictable element into the situation. Leadership transition within Iran could influence whether the conflict expands or moves toward containment.
The events of February 28 represent a decisive shift in U.S.–Iran relations. For decades, tensions were largely managed through sanctions, proxy conflicts, and indirect confrontation. The current escalation places both nations in direct military engagement, with regional stability now dependent on the pace and scale of further actions.
The situation remains fluid, with developments unfolding hour by hour. Governments worldwide are closely monitoring events as diplomatic channels attempt to prevent the conflict from widening further.