Defense Secretary Pete Hegseth ousted a top Joint Staff strategist this week for severe misconduct tied to alleged classified leaks, officials say.
Army Lt. Gen. Brett Sylvia, the director for strategy, plans and policy on the Joint Staff J5, was removed from his Pentagon post after an internal investigation into claims he leaked classified information, The Hill reported.
Two U.S. officials and a Pentagon official described the firing as Hegseth’s response to conduct that had become a direct threat to national security. The probe is ongoing and has been referred to the Department of Justice.
Sylvia previously commanded the Army’s 101st Airborne Division and holds the Bronze Star and Purple Heart. His J5 role put him at the center of military advice flowing to the chairman of the Joint Chiefs and, through that channel, to the president and other national leaders.
A Pentagon official said Sylvia started meeting journalists away from the building after the Pentagon’s media rules required escorts inside.
"Due to the Pentagon’s media policy requiring journalists to have escorts in the building, Sylvia began meeting with journalists outside of the Pentagon in order to leak classified information,"
the official said. The alleged leaks involved classified material tied to the Iran war and the Russia-Ukraine war. Officials said Sylvia failed three polygraphs during the internal investigation.
The same official framed the removal in blunt terms: Sylvia was pushed out for “severe misconduct,” and the leaking “became so critical” that Hegseth acted to protect national security.
Replacement plans for the J5 post were not clear. The Joint Staff first issued a statement offering “deepest gratitude” for Sylvia’s service, then pulled it back. An updated statement said the earlier language “did not ‘appropriately reflect the full circumstances.’”
"Out of respect for the service member and the ongoing personnel process, we will not comment further,"
a Joint Staff spokesperson said in the revised message. Hegseth’s office referred questions to the Joint Staff.
The secretary has treated unauthorized disclosures as a core management problem since taking the Pentagon’s top job close to two years ago. In an April interview with Fox News, he left little room for doubt about how his building would handle them.
"If we think you are leaking to the press, that’s a very real problem. We take that very seriously at the Pentagon,"
Hegseth said. He added:
"Disgruntled former employees are peddling things to try to save their a**, and ultimately, that’s not going to work."
That stance has already produced personnel moves. Last year, former senior adviser Dan Caldwell, former chief of staff to Deputy Defense Secretary Stephen Feinberg Colin Carroll, and Hegseth deputy chief of staff Darin Selnick were placed on leave and then fired after leak accusations. An administration official later said the allegations against Caldwell were investigated and he was cleared; he was hired earlier this year by the Office of the Director of National Intelligence.
Sylvia’s ouster lands in that same accountability lane. When classified war planning and alliance-sensitive material are at stake, a defense secretary who removes a three-star officer after failed polygraphs and a DOJ referral is enforcing the rules, not staging a purge for show.
Since taking charge, Hegseth has fired or pushed out more than two dozen senior military officers. He has also defended a plan to cut up to 20 percent of admirals and generals across the Army, Navy, and Air Force.
Speaking Oct. 1 to the Association of the United States Army in Washington, D.C., he argued that rank inflation pulls decision-makers further from the people who actually fight.
"With more layers and more rank comes more distance between the warfighter and the decisionmaker, and not necessarily better outcomes. In fact, there’s an inverse relationship between success on the battlefield [and] the number of four- and three-star generals since World War II,"
Hegseth said. He repeated the case for the cuts earlier this month.
Sylvia’s predecessor in the J5 job, Lt. Gen. Joe McGee, retired last year after friction with Hegseth and Gen. Dan Caine, the chairman of the Joint Chiefs of Staff. The pattern is consistent: officers who clash with the secretary’s standards on discipline, leaks, or structure do not keep their seats.
The J5 directorate, per the Pentagon’s own description, builds plans, policy recommendations, and strategies for the chairman so military advice to the president accounts for combatant commanders, allies, and risk under the National Military Strategy. That is not a back-office job. It sits on the seam between classified planning and civilian leadership. A leak from that office is not a press irritant. It is a security failure.
Reporting has also noted that U.S. Central Command has prepared Iran attack options that could move after the November midterm elections if the White House authorizes them. In that environment, holding a senior strategist to account for alleged disclosures about Iran and Ukraine operations is basic operational security.
Exact details of the classified material still have not been made public. The calendar date of the firing inside “this week” was not specified. The Justice Department referral has not produced announced charges. And the Joint Staff has not said who will take the J5 role next.
Those gaps do not erase the core record already on the table: a three-star strategist removed for severe misconduct, three failed polygraphs, an allegation of off-site meetings to bypass escort rules, a retracted gratitude statement, and a live DOJ referral.
Hegseth ran on fixing a Pentagon that leaked, layered up, and insulated itself from consequences. Removing a Joint Staff strategy chief under those facts is what that promise looks like in practice.
National security is not a suggestion, and classified war planning is not staff-meeting gossip, officers who treat it that way should lose the job.
