Donald Trump’s much-vaunted draft deal to end the war with Iran is not worth the paper it was written on, according to the president himself. Trump signed his Memorandum of Understanding with a flourish at Versailles less than a month ago,

A preliminary peace deal between the U.S. and Iran is in jeopardy after hostilities flared up again and Trump said he considered the ceasefire “over.”

After almost four months of warfare, the president ordered the opening of the Strait of Hormuz and the removal of the U.S. naval blockade

The deal will take “immediate effect,” opening the Strait of Hormuz for all shipping traffic while sanctions on Iranian oil sales have also been waived.

One senior U.S. official said Iran should vow to reopen the Strait of Hormuz by Saturday or will face consequences.