US-Iran Ceasefire Under Threat as Israel Launches Massive Airstrikes in Lebanon

A 14-day ceasefire between the United States and Iran, announced by President Donald Trump and effective as of April 8, 2026, began unraveling within hours as Israel launched its largest wave of airstrikes against Lebanon since the start of hostilities, killing at least 254 people and wounding 1,165 others, according to figures from the Lebanese Emergency Operations Center under the Ministry of Public Health. The Israeli military, in an operation it named "Eternal Darkness," dropped 160 bombs on 100 targets in a span of just ten minutes, striking residential buildings, mosques, medical centers, and cemeteries in Tyre, Sidon, the Beqaa Valley, and Beirut neighborhoods outside Hezbollah's traditional southern stronghold. Trump and Israeli Prime Minister Benjamin Netanyahu both insisted that Lebanon was not covered by the truce, with Trump describing the Lebanese front as a "separate skirmish" in a telephone interview with PBS. Iran, Pakistan, and Egypt — the principal mediators — took the opposite view, arguing that Lebanon was explicitly included in the agreement. The contradiction placed the fragile pact under immediate strain on its very first day, with Iranian officials warning that the ceasefire could collapse entirely if Israeli strikes on Lebanon continued.

Iran reports drone downed, refinery hit on ceasefire's first day Iran reported two separate violations of the truce on the same day it took effect. The Revolutionary Guard announced it had shot down a Hermes 900 drone over the city of Lar in southern Iran, while the National Iranian Oil Company denounced what it called a "cowardly attack by enemies" on its refinery on Lavan Island in the Persian Gulf. Iranian authorities issued a formal warning that any American or Israeli aircraft entering Iranian airspace — even without conducting strikes — would be treated as a ceasefire violation and would "receive a forceful response." Iran's Supreme National Security Council declared "total distrust" toward the American side and stated it kept "its finger on the trigger." President Masoud Pezeshkian raised the Lavan Island attack directly with Pakistani Prime Minister Shehbaz Sharif by telephone, according to Iranian media, and also told Sharif that a ceasefire in Lebanon was an essential condition within the framework of the ten-point agreement with the United States. Foreign Minister Abbas Araghchi demanded Lebanon's inclusion in the truce in a public statement, writing on Telegram: „The conditions for a ceasefire are clear and explicit: the United States must choose between a ceasefire or the continuation of the war through Israel; both things cannot coexist” — Abbas Araghchi via ABC TU DIARIO EN ESPAÑOL Araghchi also told his Turkish counterpart, according to Reuters, that if Washington showed genuine seriousness, an end to the war that began on February 28 remained achievable.

Hormuz passage disputed as tanker traffic becomes a flashpoint The Strait of Hormuz — whose reopening was described as the central axis of the ceasefire agreement — became a second flashpoint within hours of the truce taking effect. Iranian state media and the Fars agency reported that Tehran had suspended the passage of oil tankers through the strait in retaliation for the Israeli strikes on Lebanon, after the waterway had briefly reopened following the overnight agreement. White House Press Secretary Karoline Leavitt flatly denied that Iran had blocked the passage again, stating that the United States had observed "an uptick in traffic in the strait" and that Washington monitored it "minute by minute, hour after hour." Secretary of Defense Pete Hegseth echoed that position, asserting that navigation through the passage remained "open" as agreed and that "trade will flow." The contradictory claims from Tehran and Washington left the status of the strait ambiguous, with both sides presenting their own version as authoritative. Separately, Reuters reported that Saudi Arabia's East-West pipeline had been attacked by Iran, with damage being assessed, though the agency did not clarify whether the strike occurred before or after the truce came into force. The pipeline is the only Saudi oil export route that bypasses the Strait of Hormuz entirely.

254 (deaths) — Lebanese fatalities in Israeli strikes on April 8

160 (bombs) — Dropped by Israel on Lebanon in ten minutes

Ceasefire Day One — April 8, 2026: — ; — ; — ; — ; —

Islamabad talks Friday as mediators clash with Netanyahu and Trump The fundamental dispute over Lebanon's status in the ceasefire is set to dominate negotiations planned for Friday in Islamabad, where envoys from Iran and the United States are expected to meet. Pakistani Prime Minister Shehbaz Sharif, whose government spearheaded the mediation effort alongside Egypt, stated explicitly that the temporary pact covers all parties to the conflict, including Lebanon — a position that directly contradicts both Netanyahu and Trump. The Wall Street Journal, citing mediators and Israeli official sources, reported that Israeli authorities were informed of the ceasefire agreement only after it was finalized, and that Trump called Netanyahu shortly before announcing the deal on social media. IDF Chief of the General Staff Eyal Zamir stated in a communique that the army "will continue striking the terrorist organization Hezbollah and will take advantage of every opportunity," signaling no intention to halt operations in Lebanon regardless of the diplomatic dispute. Lebanese Prime Minister Nawaf Salam condemned the strikes as targeting "densely populated residential neighborhoods" and described the victims as "unarmed civilians." Iranian Ambassador to the United Nations Ali Bahreini captured the prevailing mood in Tehran in remarks to Reuters. „We are not trusting the other side. Our military forces maintain their readiness. In the meantime, we will go to the negotiations to see how serious the other party is” — Ali Bahreini via EL PAÍS

The US-Israel military campaign against Iran, designated Operation Epic Fury, began on February 28, 2026, with strikes that killed Supreme Leader Ali Khamenei. His son Mojtaba Khamenei was subsequently appointed Supreme Leader on March 9, 2026. The ceasefire announced on April 8 represents the fourth postponement of a Trump ultimatum, according to Iranian state television. The White House stated that Operation Epic Fury struck more than 13,000 targets over the course of the campaign. Hostilities between Israel and Hezbollah in Lebanon had resumed after Hezbollah launched attacks against Israel in retaliation for the start of the bombing campaign against Iran.