European nations worked Monday to keep alive diplomatic efforts to curb the Israel-Iran war as the two countries traded strikes following the United States’ weekend attack on Iran’s nuclear program

It was an unprecedented attack years in the making, with some last-minute misdirection meant to give the operation a powerful element of surprise.

Iran has often targeted U.S. digital systems. Last year, Iranian hackers pilfered and distributed sensitive documents from inside President Donald Trump’s 2024 campaign.