WASHINGTON — Defense Secretary Pete Hegseth put U.S. troops at risk when he oversaw and sent sensitive information on an unsecure messaging platform earlier this year, according to a report by the Pentagon watchdog that was released on Thursday.

The long-awaited report says that Hegseth put the entire mission at risk by detailing key operational details in a Signal group chat, which inadvertently included the editor-in-chief of The Atlantic. Those mistakes could have put troops at risk during the U.S. strike in Yemen on March 15 as the details were transmitted over an “unapproved, unsecure network.”

“The Secretary sent nonpublic (Defense) information identifying the quantity and strike times of manned U.S. aircraft over hostile territory over an unapproved, unsecure network approximatel

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