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Secretary of Defense Pete Hegseth told top-ranking generals and admirals that the department is returning to basic training for those in the military -- what he calls "common sense, maximum lethality and authority for war fighters."

"It's very simple, but incredibly powerful," Hegseth said.

He said this training was "what I've ever wanted" when he was in the military.

Secretary of Defense Pete Hegseth addressed his previous firings of a "number of senior officers" since he began working in his position, saying that "we all serve at the pleasure of the president."

"When in doubt, assess the situation, follow your gut, and if it's best for the military, make a change," Hegseth said.

He added that his rationale in making these decisions has been "straightforward."

Secretary of Defense Pete Hegseth told top-ranking generals and admirals that physical fitness tests and grooming standards will now be in place for men and women working in the Department of War, saying "the era for unprofessional appearance is over."

He said that seeing "fat troops" or "fat generals" is a "bad look" and is "not who we are."

Hegseth emphasized that if those working for the Pentagon do not meet those standards, "it's time for a new position, or a new profession."

When speaking to top-ranking generals and admirals at a meeting in Quantico, Virginia, Secretary of Defense Pete Hegseth said that the department "must prepare now" for war.

"The time is now," Hegseth said on Tuesday morning.

Hegseth also emphasized the importance of "peace through strength" and having the "right people and the right culture."

He added that the department is "clearing the way for leaders to be leaders."

"You might say we are ending the war on warriors," Hegseth said.