Defense Secretary Pete Hegseth issued a warning to employees of the Department of Defense on Sunday, just days after he was sworn in to his new office.

"Pete is a disrupter" said Vice President JD Vance in explaining why he is pleased that Pete Hegseth is now the nation's secretary of Defense.

In a press release published by the Pentagon on Saturday after his swearing-in ceremony, Hegseth wrote, “The President gave us a clear mission: achieve Peace through Strength. We will do this in three ways—by restoring the warrior ethos, rebuilding our military, and reestablishing deterrence.”

Dave McCormick's vote helped Hegseth overcome three GOP defections for be confirmed as secretary of defense. Democrat John Fetterman voted no.

The Senate voted Friday night on the confirmation of Trump's pick to lead the Department of Defense, Pete Hegseth.

A Princeton and Harvard-educated former combat veteran, Hegseth went on to make a career at Fox News, where he hosted a weekend show. Trump tapped him as the defense secretary to lead an organization with nearly 2.1 million service members, about 780,000 civilians and a budget of $850 billion.

Senators voted 51-49 to advance Hegseth's defense secretary bid, which has been mired in several controversies. Two Republicans oppose him.

The Senate narrowly voted to confirm embattled Pete Hegseth as secretary of the Department of Defense, in a major win for President Donald Trump and his new administration.

The Senate confirmed Pete Hegseth late Friday, swatting back questions about his qualifications to lead the Pentagon.

The newly sworn-in defense secretary outlined plans on Saturday to advance the president's defense priorities.

Three Republicans voted with every Democrat against Trump’s controversial pick to lead the Pentagon, forcing Vance to step in and put Hegseth over the top.