Defense Secretary Pete Hegseth insists President Donald Trump ’s abrupt firing of the nation’s senior military officer amid a wave of dismissals at the Pentagon wasn’t unusual, brushing aside outcry that the new administration is openly seeking to inject politics into the military. He also suggested more firings could come.

“Nothing about this is unprecedented,” Hegseth told “Fox News Sunday” about Air Force Gen. CQ Brown Jr. being removed Friday night as chairman of the Joint Chiefs of Staff. “The president deserves to pick his key national security advisory team.”

Hegseth said “there are lots of presidents who made changes” citing former commanders in chief from Franklin D. Roosevelt to George H.W. Bush to Barack Obama, who the defense secretary said “fired or dismissed hundreds” of military officials.

Months into his first term, Obama relieved Army Gen. David McKiernan as the commander of U.S. forces in Afghanistan. Trump, however, vowed while running for his second term to eradicate “woke” ideologies from the military and moving swiftly to dismiss so many top leaders means keeping a campaign promise.

Hegeseth and Trump have made no secret about focusing on pushing aside military officers who have supported diversity, equity and inclusion in the ranks. The administration says its is on better fortifying a lethal fighting force.

Brown was just the second Black general to serve as chairman. His 16 months in the post were consumed with the war in Ukraine and the expanded conflict in the Middle East. Trump in 2020 nominated Brown as Air Force’s chief of staff.

Trump wants to replace Brown Air Force Lt. Gen. Dan “Razin” Caine, who retired in December. It is unclear what recalling Caine to active-duty service will require. The position requires Caine to be confirmed by the Senate.

Hegseth said Friday’s dismissals affected six three- and four-star generals and were “a reflection of the president wanting the right people around him to execute the national security approach we want to take.”

He called Brown “honorable” but said he is “not the right man for the moment,” without citing specific deficiencies. After the 2020 murder of George Floyd, Brown in a video spoke of his experience as a Black pilot, apparently making him fodder for the Trump administration’s wars against inclusion initiatives in the military.

Of Caine, the Defense secretary said that Trump “respects leaders who untie the hands of war fighters in a very dangerous world.”

Retired Gen. George Casey, commander of U.S. and multinational forces in Iraq from 2004 to 2007 under Republican President George W. Bush, called the firings “extremely destabilizing.” He also noted that the Trump administration can change Pentagon policy without changing personnel, but added, that what happened is “”within the president’s prerogative.”

“That’s his prerogative,” Casey told ABC’s “This Week.” “He is the commander in chief of the armed forces.”

Still, Sen. Jack Reed of Rhode Island, the ranking Democrat on the Senate Armed Services Committee told ABC that the firings were “completely unjustified” and that “apparently, what Trump and Hegseth are trying to do is to politicize the Department of Defense.”

Hegseth was also asked on Fox News about officials potentially compiling lists of more defense officials they plan to fire. He said there was no list but suggested that more dismissals could indeed be coming.

Hundreds of thousands of federal workers have been given little more than 48 hours to explain what they accomplished over the last week, sparking confusion across key agencies as billionaire Elon Musk expands his crusade to slash the size of federal government.

Musk, who serves as President Donald Trump’s cost-cutting chief, telegraphed the extraordinary request on his social media network on Saturday.

“Consistent with President @realDonaldTrump’s instructions, all federal employees will shortly receive an email requesting to understand what they got done last week,” Musk posted on X, which he owns. “Failure to respond will be taken as a resignation.”

Shortly afterward, federal employees — including some judges, court staff and federal prison officials — received a three-line email with this instruction: “Please reply to this email with approx. 5 bullets of what you accomplished last week and cc your manager.”

The deadline to reply was listed as Monday at 11:59 p.m., although the email did not include Musk’s social media threat about those who fail to respond.

The latest unusual directive from Musk’s team injects a new sense of chaos across beleaguered multiple agencies, including the National Weather Service, the State Department and the federal court system, as senior officials worked to verify the message’s authenticity Saturday night and in some cases, instructed their employees not to respond.

Thousands of government employees have already been forced out of the federal workforce — either by being fired or offered a buyout — during the first month of Trump’s administration as the White House and Musk’s so-called Department of Government Efficiency fire both new and career workers, tell agency leaders to plan for “large-scale reductions in force” and freeze trillions of dollars in federal grant funds.

There is no official figure available for the total firings or layoffs so far, but The Associated Press has tallied hundreds of thousands of workers who are being affected. Many work outside of Washington. The cuts include thousands at the Departments of Veterans Affairs, Defense, Health and Human Services, the Internal Revenue Service and the National Parks Service, among others.

Labor union leaders quickly condemned the ultimatum and threatened legal action.

AFGE President Everett Kelley called the new order an example of Trump and Musk’s “utter disdain for federal employees and the critical services they provide to the American people.”

“It is cruel and disrespectful to hundreds of thousands of veterans who are wearing their second uniform in the civil service to be forced to justify their job duties to this out-of-touch, privileged, unelected billionaire who has never performed one single hour of honest public service in his life,” Kelley said. “AFGE will challenge any unlawful terminations of our members and federal employees across the country.”

Musk on Friday celebrated his new role at a gathering of conservatives by waving a giant chainsaw in the air. He called it “the chainsaw for bureaucracy” and said, “Waste is pretty much everywhere” in the federal government.

McLaurine Pinover, a spokesperson at the Office of Personnel Management, confirmed Musk’s directive and said that individual agencies would “determine any next steps.”

What happens if an employee is on leave or vacation? Again, she said individual agencies would determine how to proceed.

In a message to employees on Saturday night, federal court officials instructed recipients not to respond.

“We understand that some judges and judiciary staff have received an email ... directing the recipient to reply with 5 accomplishments from the prior week. Please be advised that this email did not originate from the Judiciary or the Administrative Office and we suggest that no action be taken,” officials wrote.

Judges around the country got emails from Musk’s team in late January, apparently by mistake, U.S. District Judge Randolph Daniel Moss said earlier this month. Moss said he’d also gotten a message and ignored it.

The National Weather Service leadership acknowledged some confusion in a message to its employees late Saturday as well.

Elon Musk, during a video call on Thursday at the World Governments Summit in Dubai, UAE, called for the United States to “delete entire agencies” from the federal government, pushing for drastic spending cuts and a restructuring of national priorities under President Donald Trump.

Musk, who was speaking remotely, painted a broad picture of his view on the Trump administration's goals, interweaving topics of “thermonuclear warfare” and the risks posed by artificial intelligence. He criticized what he saw as the dominance of bureaucracy over democratic governance.

“I think we do need to delete entire agencies, rather than just leaving a few behind,” Musk continued. “If we don’t remove the roots of the weed, it’s easy for it to grow back.”

Although Musk has appeared at the summit before, this time his comments carried more weight, as he now holds significant control over certain government functions, especially with Trump’s endorsement, after taking charge of the Department of Government Efficiency. His role has involved sidelining long-term government officials, gaining access to sensitive data, and prompting legal debates about presidential power limits.

In his remarks, Musk also expressed an isolationist stance regarding U.S. influence in the Middle East, especially given the ongoing legacy of the U.S. wars in Afghanistan and Iraq following the September 11, 2001, terrorist attacks.

Musk emphasized that under Trump, the U.S. has become “less interested in interfering with the affairs of other countries,” suggesting that the U.S. had sometimes been overly aggressive in international affairs. Speaking to the UAE audience, Musk noted, “There are times the United States has been kind of pushy in international affairs, which may resonate with some members of the audience,” acknowledging the UAE's autocratic governance.

On domestic matters, Musk touched on the Trump administration's push to eliminate diversity, equity, and inclusion (DEI) efforts, linking it to the potential risks of AI. He joked, “If hypothetically, AI is designed for DEI, you know, diversity at all costs, it could decide that there’s too many men in power and execute them.”

Regarding AI, Musk revealed that X’s new AI chatbot, Grok 3, would be ready in about two weeks, calling it “kind of scary.” He also criticized Sam Altman’s leadership at OpenAI, comparing it to a nonprofit dedicated to saving the Amazon rainforest that becomes a lumber company. Musk recently made a $97.4 billion bid to take over OpenAI, and a court filing on his behalf stated that he would withdraw the offer if OpenAI proceeds with its plan to become a for-profit entity.

Musk also shared plans for a new “Dubai Loop” project as part of his work with the Boring Company, which has been digging tunnels in Las Vegas to accelerate transit. According to a later statement from Dubai’s crown prince, Sheikh Hamdan bin Mohammed Al Maktoum, Dubai and the Boring Company would explore the development of a 17-kilometer (10.5-mile) underground network with 11 stations capable of transporting over 20,000 passengers per hour. No financial terms were disclosed.