Elon Musk
Elon Musk has been appointed to co-lead Project Meridian, a 120-day Pentagon study into the future of warfare announced on Wednesday, 30 September Gage Skidmore/WikiMedia Commons

Elon Musk has been named a co-leader of Project Meridian, a 120-day Pentagon study examining the future of warfare, announced on Wednesday, 30 September.

Defence Secretary Pete Hegseth named Musk alongside Anduril Industries co-founder Palmer Luckey and former House Speaker Newt Gingrich.

The appointments drew online criticism, including from one X user who wrote, 'This should terrify us all.'

Musk's previous White House role ended in May 2025. His relationship with President Donald Trump deteriorated the following month publicly during a dispute over tax and spending legislation. The two later resumed public contact before Musk was selected for the Pentagon project.

Project Meridian Will Examine Future Warfare

Project Meridian will examine technologies, weapons and capabilities that US forces could need years or even decades from now. Hegseth has said the project is not intended to develop new military strategies or policies.

Instead, the study will consider what capabilities the Pentagon should develop, test and field as technology changes warfare. Its scope stretches from underground environments to the cislunar frontier, the region between Earth and the Moon.

The Pentagon has identified areas including artificial intelligence, autonomy, robotics, directed energy and biotechnology as technologies expected to influence future military operations.

Emil Michael, the Pentagon's chief technology officer and under secretary for research and engineering, will facilitate the project. The review is also expected to draw expertise from industry, academia and policy circles.

Musk, Luckey and Gingrich will not receive operational command over US forces through Project Meridian. Their role is to lead the study and produce recommendations.

That distinction separates Meridian from the Pentagon's separately announced Autonomous Warfare Command, which is being developed around autonomous and robotic military capabilities.

Project Meridian is expected to conclude after 120 days with an unclassified public report and a classified annex.

Critics Question Project Meridian's Civilian Leadership

The choice of Musk, Luckey and Gingrich quickly attracted scrutiny because none followed a conventional military career. Online critics questioned what the three would bring to a project examining the future requirements of American forces.

One X user responded to Musk's appointment by writing, 'This should terrify us all.' Other social media users questioned the trio's military credentials. Such comments are self-selected and should not be treated as representative of wider public opinion.

Their backgrounds, however, extend into defence and national security in different ways. Luckey co-founded Anduril, a defence technology company that develops systems for military customers. Musk's SpaceX also works extensively with the US government across defence and space programmes.

Gingrich has no military service record, but his background includes military policy and education. He has taught senior officers and previously served on the Defense Policy Board.

Hegseth has defended bringing people from outside the Pentagon into the process, arguing that forecasting future conflicts should not depend solely on officials already inside the department.

Musk's and Luckey's commercial connections to the defence sector have also prompted questions about potential conflicts of interest. The Pentagon announcement did not set out specific recusal arrangements or an independent review process for the project's leaders. That does not establish that existing ethics safeguards will not apply.

Musk Returns After DOGE Role and Trump Feud

Musk's appointment has also renewed attention on his previous work in Trump's administration. A Government Accountability Office report described Musk as a White House senior adviser and special government employee.

It said he did not formally hold a position in the US DOGE Service, although he advised personnel working on DOGE initiatives.

Trump publicly referred to Musk as the leader of the broader DOGE effort in February 2025. Musk's special-government-employee stint ended in May of that year.

His major public rupture with Trump followed on 5 June 2025, when the two exchanged criticism over Trump's tax and spending legislation.

They later resumed public contact. Musk attended Trump's White House state dinner for Chinese President Xi Jinping in September 2026, shortly before the Project Meridian announcement.

Federal employment also declined sharply during the administration's broader workforce restructuring. Office of Personnel Management data showed 271,363 fewer federal employees by July 2026 than on 20 January 2025.

OPM attributed that decline to several policies, including hiring restrictions, early retirements, reductions in force and the Deferred Resignation Program. The figures therefore cannot be attributed solely to Musk or DOGE.

Project Meridian now has 120 days to produce its recommendations on the technologies and capabilities that could shape future warfare. Its eventual public report should provide a clearer picture of what Musk, Luckey and Gingrich believe the US military will need in the decades ahead.

The scrutiny centres on two questions. One is what technologies the review will recommend, and the other is why three prominent civilians were selected to help shape that assessment.