---
title: "Pentagon fires top military planner Sylvia amid allegations of leaks concerning Ukraine and Iran secrets"
description: "The Pentagon has dismissed top military planner Lt. Gen. Brett Sylvia amid allegations of leaking secrets on Ukraine and Iran. The case has been referred to the DOJ, and no successor has been named yet."
date: 2026-10-29T19:47:05.191Z
lang: en
url: https://xab.info/en/posts/pentagon-fires-general-sylvia-over-secret-leaks
tags: [pentagon, brett-silvea, classified-leak, us-defense, hegseth]
author: "Alexander Buran"
publisher: "XAB.info"
---

# Pentagon fires top military planner Sylvia amid allegations of leaks concerning Ukraine and Iran secrets

![Lieutenant General Brett Sylvia in a business suit during a Pentagon meeting](https://xab.info/media/2026/10/29/pentagon-uvolil-generala-silvea-iz-za-utechki-sekretov/pentagon-uvolil-generala-silvea-iz-za-utechki-sekretov-1.webp)

## Key Points

- Lieutenant General Brett Sylvia has been dismissed from his post as the Pentagon's top military planner (J5 position).
- According to a department official, he failed three polygraph tests; the case has been referred to the Department of Justice.
- Other sources confirmed the lie detector tests but stated that the allegations are unfounded.
- He is the second general in this post to leave during Hegseth's tenure; a successor has not yet been named.

The US Department of Defense has made a personnel decision that is already being called one of the most high-profile during Pete Hegseth’s leadership of the agency. The Pentagon's top military planner, Lieutenant General Brett Sylvia, has been dismissed from his post amid allegations of leaking classified information concerning, in particular, the war between Russia and Ukraine, as well as the conflict surrounding Iran. According to sources, the case has been referred to the Department of Justice for further investigation.

### Three polygraph tests and referral to the Department of Justice

According to a Pentagon official, Lieutenant General Brett Sylvia failed three polygraph tests related to the disclosure of classified data to the press. On this basis, his case was referred to the US Department of Justice for investigation. However, other sources within the agency, who confirmed the fact of the lie detector tests, stated that the allegations made against him are untrue. Thus, opinions within the Pentagon regarding the general's guilt are divided.

### Official stance: "Personnel measures to protect data"

Pentagon spokesman Sean Parnell did not mention Sylvia's name directly in his statement. He only confirmed that following a large-scale investigation related to open access to information, "the Department has taken necessary personnel measures to protect sensitive data." This phrasing neither refutes nor confirms specific allegations of a leak, but records the very fact that a personnel decision was made at the highest level of the agency.

### Who is Brett Sylvia and why his post matters

Brett Sylvia headed the Strategy, Plans, and Policy Directorate of the Joint Staff, holding the J5 position, and was responsible for long-term military planning. His area of responsibility included coordinating plans related to Iran, among other things. This made his post one of the most crucial in the Pentagon's strategic planning system: long-term scenarios across a range of areas, reportedly including Ukrainian and Iranian ones, passed through him.

### The second general in this post under Hegseth

Sylvia's dismissal is the second personnel upheaval in this position since Pete Hegseth took charge of the US Department of Defense. His predecessor, Lieutenant General Joseph McGee, stepped down in October 2025. As of publication, Sylvia's replacement has not yet been named, leaving the post of chief military planner vacant and heightening attention on how the agency will approach long-term planning going forward.

### Context: Other high-profile decisions by the defense agency

The decision regarding Sylvia fits into a series of recent high-profile Pentagon moves related to the use of technology in combat zones and the release of classified data. In particular, the agency rejected a Senate request to investigate Starlink and Starshield restrictions in Ukraine, despite a bipartisan appeal from lawmakers. Simultaneously, the Department of Defense released new archival materials on UFOs, disclosing a batch of classified documents and testimonies about anomalous phenomena near Catalina Island in California. Against this backdrop, the general's dismissal on suspicion of a leak looks like another episode of the agency revising its approaches to handling confidential information.

## Accounts differ

### The fact of classified data disclosure and polygraph test results

- **Pentagon official:** Lieutenant General Brett Sylvia failed three polygraph tests regarding the disclosure of classified data, and the case was referred to the DOJ. ([rbc.ua](https://www.rbc.ua/ukr/news/gegset-zvilniv-topgenerala-cherez-zliv-danih-1793302540.html))
- **Other agency sources:** Confirm the fact of lie detector tests, but state that the allegations do not correspond to reality. ([rbc.ua](https://www.rbc.ua/ukr/news/gegset-zvilniv-topgenerala-cherez-zliv-danih-1793302540.html))
- **Pentagon spokesman Sean Parnell:** Did not name Sylvia, but confirmed personnel measures to protect confidential data following an information access investigation. ([rbc.ua](https://www.rbc.ua/ukr/news/gegset-zvilniv-topgenerala-cherez-zliv-danih-1793302540.html))

*Where they agree:* Lie detector tests were conducted, and the general left his position — all sources confirm this.

## Fact-Check & Sources

- [Гегсет уволил топгенерала из-за "слива" данных о войне в Украине, - CBS News](https://www.rbc.ua/ukr/news/gegset-zvilniv-topgenerala-cherez-zliv-danih-1793302540.html) - Confirms the dismissal, three polygraph tests, referral to the DOJ, Parnell's statement, the J5 role, and McGee's resignation in October 2025. At the same time, it notes a discrepancy: some sources dispute the allegations.

## FAQ

### Who is Brett Sylvia?

A Lieutenant General who headed the Joint Staff's Strategy, Plans, and Policy Directorate (J5 position) and was responsible for long-term military planning, including the coordination of plans regarding Iran.

### Why was he fired?

Amid allegations of leaking classified information regarding Ukraine and Iran. According to a Pentagon official, he failed three polygraph tests, and the case was referred to the DOJ.

### Did the Pentagon confirm the dismissal?

Spokesman Sean Parnell did not name him directly, but confirmed that following an investigation into information access, the agency took personnel measures to protect confidential data.

### Has Sylvia's successor been appointed?

No, as of the time of publication, a replacement has not yet been named.