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Illustration: Aïda Amer/Axios. Photo: Pool/Getty Pool

President Trump's "economic D-Day" for Iran came and went Monday with little of the shock or awe it promised, amounting instead to yet another extended ultimatum.

Why it matters: Operation Economic Outcast will unfold not like the Allied invasion of Normandy, but as a sweeping, slow-burn sanctions campaign that could eventually lock Iran's foreign enablers out of the U.S. financial system.