Daily Strike — Evening Edition

In the eleven hours from 11 a.m. to 10 p.m. ET on May 31, the Lebanon front moved sharply to the center of the regional picture: Israeli military and political leaders are discussing a major expansion of operations that could include strikes on Beirut itself, European governments are sounding open alarm, France has called an emergency UN Security Council session for Monday, and the Lebanon death toll has passed 3,412. On the Iran track, Tehran submitted counter-amendments rejecting Trump’s revised ceasefire draft, extending the negotiating standoff. Two secondary stories — an IRGC strike on an oil tanker near the Strait of Hormuz, and bipartisan pushback in Congress on a US-Israel military integration bill — add further texture to an already dense evening.

Top story: Israel weighs major Lebanon escalation, including Beirut

Israeli Channel 13, citing an unnamed security source, reported Sunday that Israeli military and political leaders are weighing “a significant expansion of its military campaign in Lebanon,” with discussions about a major increase in the pace and scope of attacks. Beirut is specifically named as a possibility under consideration. Prime Minister Benjamin Netanyahu is described as the decision-maker on scale and timing. The channel did not publish operational details.

The report sits on top of ground movements confirmed this morning: Israeli forces have crossed the Litani River in what the IDF called its largest operation in Lebanon since 2000, and the military has claimed control of Beaufort Castle, the hilltop fortress in southern Lebanon. Lebanon’s health ministry puts the cumulative death toll from Israeli attacks at 3,412. The combination — ground forces past the Litani, Beaufort Castle taken, and political discussions about Beirut — represents a qualitative shift in the Lebanon front that has been building since early in the week.

Important caveats apply: the Channel 13 sourcing is a single unnamed security source. No Israeli government official has confirmed the Beirut option on the record, and Netanyahu has not publicly addressed the escalation reports. The IDF’s posture and the ground advances are confirmed; the Beirut deliberations remain single-source.

IRGC tanker strike

Reports have emerged of an IRGC strike on an oil tanker vessel in or near the Strait of Hormuz. Task and Purpose, which covers US military operations, has reported on Operation Southern Spear but does not carry detailed confirming information about a specific tanker strike in today’s coverage. This item was included in the story queue for tonight’s brief based on available intelligence-layer sourcing; the vessel name, cargo, crew status, and precise location have not been independently verified as of this writing. We are including it as an active, developing item rather than a confirmed event. We will update when verifiable detail is available from CENTCOM, Lloyd’s, or a named reporting outlet.

Diplomatic front: Europe condemns, UNSC convenes Monday

The Israeli advance and the escalation reports drew a unified, if measured, European response on Sunday. German Foreign Minister Johannes Wadephul said: “The Israeli army’s advance further into southern Lebanon is cause for serious concern.” He warned that further escalation would “exacerbate the already tense situation and trigger new waves of displacement within Lebanon.” French President Emmanuel Macron was more direct: “Nothing justifies the major escalation under way in south Lebanon.” Macron called for the violence to be brought “to an end for good” and said diplomacy is essential, also urging the United States and Iran to reach an agreement quickly to prevent further regional widening.

France has requested an emergency session of the UN Security Council on Lebanon, which will convene Monday, according to diplomatic sources cited by AFP. The session is scheduled to follow immediately after a separate emergency meeting on a Russian drone crash in Romania. The trigger for the Lebanon meeting is Israel’s capture of Beaufort Castle and the expanding military occupation of southern Lebanon. No UN official statement on the meeting’s agenda or expected outcome was available as of this writing.

Iran talks: counter-amendments extend the standoff

As covered in this afternoon’s dedicated article, Iran submitted counter-amendments to the draft memorandum of understanding under discussion with Washington, rejecting Trump’s proposed changes that had been relayed by Pakistani mediators, per Iran’s Tasnim News Agency. Tehran confirmed it intends to revise the latest draft rather than accept the US version as written. The morning edition covered the prior round in full — Trump returned a toughened draft after a Friday Situation Room session, and Iranian officials said key issues remained unresolved. Tonight’s development confirms the negotiating track remains in motion but is not converging. The specific content of either side’s amendments has not been published.

Secondary fronts

NDAA: bipartisan pushback on US-Israel integration. Section 224 of the current $1.15 trillion National Defense Authorization Act would designate a Department of Defense executive agent to oversee joint US-Israeli initiatives, including bilateral defense technology research, development, testing, evaluation, and industrial cooperation. Democratic Congressman Ro Khanna and Republican Thomas Massie are pledging to strip the provision. Khanna characterized the partnership, telling critics: “Trump can’t kill the Massie/Khanna partnership no matter how much he posts on Truth Social.” Massie raised a separate concern about obscuring aid transparency by framing it as technological cooperation. Public polling cited by Al Jazeera puts opposition to additional US economic and military support for Israel at 57 percent.

Operation Southern Spear. US military airstrikes on suspected drug traffickers in the Caribbean Sea and Eastern Pacific Ocean have now killed 205 people across 62 strikes, including 63 destroyed vessels. The campaign began in September 2025 and was formally designated Operation Southern Spear in mid-November. Two strikes occurred in late May; the May 31 action killed three people, pushing the cumulative toll past 200. SOUTHCOM described those killed as “narco-terrorists.” An Inspector General report noted SOUTHCOM “could not publicly release its measures of effectiveness” for the operation, raising accountability questions that neither the Pentagon nor Congress has addressed publicly.

What to watch tomorrow

1. UN Security Council emergency session on Lebanon, scheduled for Monday. France requested the meeting; watch for any formal resolutions or statements from the council’s permanent members, particularly the United States and Russia.
2. Iran’s next move on the revised ceasefire draft. Tehran has submitted counter-amendments; the Pakistani mediator channel is expected to convey the response to Washington within 24 to 48 hours. Watch Tasnim and IRNA, and watch for any Islamabad readout.
3. IRGC tanker strike maritime fallout. Shipping firms and war-risk insurers will reprice Strait of Hormuz transits if the strike is confirmed and attributed. Watch for Lloyd’s of London bulletins, Baltic Exchange war-risk surcharges, and any CENTCOM or Fifth Fleet statement.

What we’re tracking but haven’t published on yet

• The specific content of both sides’ ceasefire amendments. Neither the US toughened draft nor Iran’s counter-proposals have been published, and sourcing remains limited to anonymous officials and Iranian state media. We will report on the substance when a concrete provision is on the record.
• The Beaufort Castle strategic picture. The fortress has changed hands repeatedly since 1982; its current capture is militarily significant, but the IDF’s intentions for the ground it now holds — whether to consolidate or press further — have not been stated publicly.
• US casualties from the Iranian missile strike on Ali Al Salem Air Base in Kuwait. ABC News reported injuries among American soldiers and civilian contractors last Wednesday; CENTCOM has not confirmed or denied. We are holding this pending an official statement or DoD casualty notice.

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— The America Strikes desk