With His Latest Threats, Trump Signals to Iran That He Is Willing to Escalate

The New York Times  |  David E. Sanger

President Donald Trump threatened on July 21, 2026, to accelerate the war with Iran by launching a bunker-busting attack against Pickaxe Mountain, an incomplete underground facility. This potential strike risks escalating a conflict that previously saw the Pentagon bomb three major Iranian nuclear sites in June 2025 under Operation Midnight Hammer.

Western intelligence agencies assess that the targeted mountain currently functions only as a deep storage site rather than an active uranium enrichment facility. Nevertheless, the administration is prioritizing deterrence, utilizing the threat of force to signal an unlimited willingness to escalate against Tehran's regional proxies. During a bilateral meeting with Lebanese President Joseph Aoun, the American president also warned of imminent military action against the Houthis if they attempt to block Saudi shipping in the Red Sea. Defense Secretary Pete Hegseth reinforced this posture, promising a tenfold military response if commercial shipping lanes near the Strait of Hormuz are targeted.

Comment

Targeting an incomplete facility like Pickaxe Mountain represents a shift in American counter-proliferation doctrine from physical denial to psychological deterrence. Unlike the kinetic strikes of Operation Midnight Hammer in June 2025, which focused on destroying active enrichment infrastructure, threatening an empty underground site signals that future operations will target structural resilience rather than immediate output. This approach relies on the threat of the GBU-57 Massive Ordnance Penetrator to hold deeply buried geological formations at risk, regardless of their operational status. Consequently, the threshold for kinetic intervention is lowered, transforming bunker-busting capabilities from a last-resort counter-proliferation tool into an active instrument of coercive leverage.

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