The Pentagon has asked its inspector general to review the record and behavior of Gen. Mark A. Milley, the retired chairman of the Joint Chiefs of Staff who stood up to President Trump in his first term.

After being sworn-in by Vice President JD Vance, the Pentagon’s new leader addressed the Defense Department’s three million employees.

The billionaire has quietly founded a startup that aims to “bring people closer, simplify communication, and enhance engagement” through artificial intelligence.

The new defense secretary’s goals run counter to the military’s apolitical tradition and efforts to build a force that mirrors America.