Trump to Convene NSC Situation Room Tuesday; Pentagon Preparing 'Sledgehammer' Operation for Resumed Campaign — Day 80

President Trump is expected to convene his National Security Council in the Situation Room on Tuesday, May 19, 2026, to review military options against Iran, according to reporting on Day 80. The meeting follows Iran's rejected peace offer and Trump's 'Clock is Ticking' ultimatum posted on Truth Social on May 18. Background reporting indicates the Pentagon has been working on a new operational name — 'Sledgehammer' — for a potential resumed campaign, distinct from Operation Epic Fury (formally terminated May 1). The planning represents the most concrete signal yet of imminent military resumption after weeks of diplomatic stalemate. Munitions shortages have emerged as a constraint on any resumed campaign: Military Times reported on May 11 that Pentagon officials have expressed concern about munitions stockpiles following the intense initial bombing campaign that struck 11,000+ targets in 67 days. Trump told reporters on May 11 that Iran's earlier proposal was 'a piece of garbage.' The pattern — diplomatic proposal (May 16) followed immediately by military threat (May 17–18) — mirrors the cycle of deadlines and ultimatums throughout the conflict, including the April 6 energy infrastructure deadline and the March 26 Hormuz 48-hour ultimatum. Iran's military declared 'full readiness' to confront any resumed aggression the same day. The ceasefire that began April 8 has now held for 40 days; analysis of previous ceasefire windows suggests the 40–45-day mark has historically preceded re-escalation.