U.S. officials warned on Thursday that Iran-backed forces could strike following Israel’s killing of a top Iranian naval commander, raising the risk of broader regional escalation as no immediate retaliation has been confirmed.
A strike killed Islamic Revolutionary Guard Corps (IRGC) Navy commander Alireza Tangsiri in Bandar Abbas, according to Israeli officials, with Israel describing the operation as part of a broader campaign targeting Iran’s military leadership. Hardline factions inside Iran—many aligned with the IRGC—are pressing for a more aggressive nuclear posture, including discussion of pursuing a nuclear weapon or stepping away from international constraints, according to Reuters.
U.S. Defense Secretary Pete Hegseth said March 26 that “never in recorded history has a nation’s military been so quickly and effectively neutralized.”
Military.com reached out for comment to the White House, U.S. Department of Defense, U.S. Central Command, State Department and Israeli Defense Forces.
Iran’s Military Power Surges
The escalation is reframing Iran’s leadership transition, in which Mojtaba Khamenei—the son of longtime supreme leader Ali Khamenei—was elevated to the country’s most powerful position following his father’s death last month.
His rise underscores that the IRGC backed a successor with influence over both the war effort and Iran’s highly enriched uranium stockpile.
As Israeli strikes continue targeting senior commanders, the transition is increasingly being defined not by clerical continuity but by the Guard’s expanding influence inside Iran’s power structure, according to Reuters.
Israeli Defense Minister Israel Katz said the killed naval commander was “directly responsible for the terrorist operation of mining and blocking the Strait of Hormuz,” tying the strike to broader concerns over global shipping and energy security.
The supreme leader retains ultimate authority over Iran’s armed forces, intelligence services and nuclear program. However, Mojtaba Khamenei has remained largely out of public view since taking power, raising questions about how authority is being exercised at a critical moment in the conflict.
Israeli strikes targeting senior Guard leadership have added to that uncertainty, reinforcing assessments from analysts that the organization is playing an increasingly central role in shaping Iran’s response.
How Iran’s Revolutionary Guard Projects Power
Iran’s supreme leader holds sweeping authority over the military, intelligence services and nuclear program, serving as commander in chief.
But as the conflict intensifies and Israeli strikes target senior commanders, the IRGC is emerging as a dominant force shaping Iran’s response, according to U.S. officials.
The Guard operates parallel to Iran’s conventional military while answering directly to the supreme leader, allowing it to both execute operations and influence broader decision-making at the highest levels of government.
Its elite Quds Force oversees proxy networks across Iraq, Syria, Lebanon and Yemen. According to U.S. officials and prior reporting, those groups have carried out coordinated drone and rocket attacks on American and allied forces, making them a central tool of Iran’s regional strategy.
The Guard also plays a central role in Iran’s ballistic missile program and naval operations in the Persian Gulf, including activity tied to the Strait of Hormuz—which has become a focal point of that strategy with Iran using control over key shipping lanes as leverage in the broader confrontation.
Iran-Backed Attacks on US Forces Intensify
The shift comes as U.S. forces across the Middle East face mounting threats from Iran-aligned militias linked to the IRGC, with attacks increasing alongside the broader escalation between Iran, Israel and the United States, according to U.S. officials and reporting from Reuters.
Iran-backed groups have carried out repeated drone and rocket attacks targeting American troops and coalition positions in Iraq and Syria. On March 17, drones and rockets were fired at the U.S. Embassy in Baghdad, according to security officials cited by Reuters.
The United States has responded with strikes on militia sites in Iraq, extending a cycle of retaliation that has raised concerns about a broader regional confrontation. Iraq has been caught in the middle as attacks from both sides spill onto its soil, increasing the risk of wider escalation.
Officials with U.S. Central Command have warned the threat environment remains volatile, noting that Iran-backed groups retain the ability to escalate attacks quickly in response to battlefield developments.
Since Iran’s supreme leader ultimately approves major military operations, any shift in authority could influence how aggressively those proxy forces operate, according to U.S. officials.
