Day 18 of Operation Mountain Lion will be etched in memory as one of the most decisive days since the opening of Israel's military campaign against Iran on February 28, 2026. In a precision strike by the Israeli Air Force, Ali Larijani, Iran's senior national security official, was eliminated — the most precise strike against the regime's center of power since the assassination of Supreme Leader Ayatollah Khamenei on the first day of the war. Simultaneously, Gholamreza Soleimani, commander of the paramilitary Basij forces, was also killed. Both eliminations mark the accelerating collapse of Iran's chain of command, confronting Tehran with an existential question: who is actually in command of what remains?
Targeted Eliminations: The Head of the Snake Is Cut Off
Defense Minister Israel Katz confirmed that Prime Minister Benjamin Netanyahu and he himself had granted the IDF sweeping authorization "to eliminate any Iranian senior official for whom the intelligence and operational loop has been closed, without need for further approval." This statement, reported by the BBC on March 18, reveals the depth of Israel's commitment to the systematic dismantling of the Iranian governing apparatus. This is no longer a matter of pinpoint strikes but rather a structured doctrine of targeted killing.
The elimination of Larijani joins a long and growing list of Iranian officials killed since the opening of the operation. Khamenei himself was eliminated on the first day, February 28, a fact confirmed by several international media outlets. Intelligence Minister Esmail Khatib was reported killed the day after Larijani. This systematic destruction of the command tier leaves Iran in a state where no central actor is capable of coordinating a coherent strategic response.
Strikes and Infrastructure: More Than 5,000 Targets
By Day 18 of the operation, Israel and the United States had struck more than 5,000 targets across Iran — a figure confirmed by White House Press Secretary Karoline Leavitt as early as Day 12 of the war. This represents a vast scope encompassing ballistic missile launch sites, weapons production facilities, military fuel depots, and command-and-control infrastructure. The Shahran oil depot on the outskirts of Tehran was struck as early as Day 9, with the IDF claiming responsibility for "striking fuel storage facilities and related sites identified with the Iranian armed forces."
The operation began on February 28 with approximately 200 Israeli fighter jets taking off in what the IDF described as "the largest coordinated air operation in the history of the Israeli Air Force," as reported by Fox News on March 5. Within 24 hours, a sustained aerial corridor was opened over Tehran — an unprecedented achievement indicating the near-total destruction of Iran's air defense systems.
As for the nuclear facilities — Natanz, Fordow, and Isfahan — no specific strikes were reported on Day 18 itself, but satellite analyses published by The New York Times through March 3 confirmed hits on ballistic missile launch and production sites. An Al Jazeera strategic analysis from March 16 noted that Iran entered the war with 440 kg of uranium enriched to 60%, and that American intelligence assessments had determined Tehran was "less than two weeks" away from a sufficient quantity for a single nuclear bomb.
Iran's Response: A Steadily Fading Launch Capability
Iran has not remained passive, but the data point to accelerating erosion. By Day 12 of the operation, the Revolutionary Guards had launched 37 waves of attacks including especially heavy "Khorramshahr" missiles, in multi-layered assaults lasting more than three hours each. Targets included Tel Aviv, Haifa, and West Jerusalem, alongside American bases in Erbil in Iraq, Bahrain, and Manama. Iran also deployed naval drone boats against commercial shipping, striking at least three oil tankers near the coasts of the UAE and Basra.
Nevertheless, by Day 18, the signs of a declining Iranian launch capability are unmistakable. As early as March 3, President Trump declared that Iran was "running out of launchers." By Day 6, the IDF announced the destruction of "most of Iran's air defense systems and missile launchers." Despite Iran retaining a residual strike capability, the pace of attacks has diminished significantly compared to the opening days.
Israeli Defense Systems: A Shield Against a Weakening Threat
No specific data for Day 18 are available regarding interception rates for Iron Dome, Arrow-3, or Magic Wand. Nevertheless, the fact that Iran continued to launch attack waves — even at a declining rate — indicates that the Israeli-American defense array has required constant vigilance. The cumulative strategic assessment suggests that the combination of multi-layered defense and the proactive destruction of launchers inside Iran itself has created an ever-growing security envelope for the Israeli home front.
Casualties and Damage: The Regime's Price
The Iranian Ministry of Health confirmed that at least 1,444 people were killed and 18,551 wounded in the American-Israeli strikes since February 28. Estimates by Israeli analysts, quoted by Fox News as early as Day 5, assessed that more than 1,000 enemy combatants had been killed inside Iranian territory. On the American side, the Pentagon confirmed by Day 12 approximately 140 wounded American soldiers and 7 killed since the start of Operation Epic Fury, the American counterpart to Operation Mountain Lion.
Specific Israeli casualty figures for Day 18 were not located in reports, but Iran's firing targets — Tel Aviv, Haifa, and West Jerusalem — indicate a deliberate intent to strike civilian populations, in stark contrast to the Israeli approach of striking defined military and strategic targets.
The Diplomatic Front: First Cracks in the Iranian Wall
The most significant diplomatic development of Day 18 came from Tehran itself. Iranian Foreign Minister Abbas Araghchi called for the creation of "a new international mechanism" to manage transit through the Strait of Hormuz "after the conclusion of the current conflict." This marks the first time an Iranian official has used language implying an end to the fighting — even if still far from proposing a ceasefire.
At the Vatican, Cardinal Pietro Parolin, Secretary of State and senior adviser to Pope Leo XIV, addressed Trump and Israel directly, calling on them "to end this as soon as possible." The Pope himself has intensified his calls in recent days for an end to the war, as reported by Newsmax.
On the American political front, the Senate held a hearing before the Intelligence Committee on domestic security threats in the shadow of the operation. Meanwhile, Joe Kent, director of the National Counterterrorism Center, resigned in opposition to the war — a move that prompted Senator Mitch McConnell to respond sharply, describing the resignation letter as containing "virulent antisemitism." Congressman Pat Harrigan, a Special Forces veteran, testified that the Democrats "would have preferred to keep kicking the can down the road for another 47 years."
Economy and Energy: The Strait of Hormuz Remains Blocked
The Strait of Hormuz remains effectively closed — on Monday, March 16, only 8 non-Iranian vessels were identified in the strait. The Trump administration has not offered "a clear timeline" for reopening. In response to the energy crisis, Trump suspended the Jones Act for 60 days to allow foreign-flagged ships to transport oil between American ports. U.S. oil prices rose to approximately $97 per barrel, Brent reached approximately $109, and fuel prices in the U.S. surged by 86 cents per gallon since the start of the war.
A coalition of 32 nations agreed to release a record quantity of oil from strategic reserves, and the U.S. even temporarily eased sanctions on Russian oil — an unprecedented step reflecting the severity of the supply crisis. Simultaneously, explosions were reported at the South Pars gas field, the world's largest, shared between Iran and Qatar, as Iran threatened to strike oil and gas infrastructure of Gulf states.
Strategic Outlook: Iran Between Disintegration and Submission
On Day 18 of Operation Mountain Lion, the strategic picture is clearer than ever. Iran's Supreme Leader is dead. Senior security and intelligence officials are being killed one after another. Missile launch capability is being eroded. And the Strait of Hormuz — Iran's last lever of pressure — is generating a global energy crisis that is forcing an international coalition to act. An Al Jazeera analysis from March 16 reached a conclusion that even a party hostile to Israel finds difficult to deny: "The American-Israeli strategy against Iran is working."
Unlike the June 2025 war that lasted 12 days and ended through Omani mediation, the current operation is broader, deeper, and aimed at achieving a decisive outcome. There is no defined end date. As an Israeli military source announced on the first day: operations will continue "as long as necessary." On Day 18, Israel continues to prove that its intentions are serious — and that the Iran of Khamenei, Larijani, and Soleimani is fading from the map.