The Pentagon is facing growing turmoil as Defense Secretary Pete Hegseth’s aggressive effort to reshape military leadership sparks alarm among current and former officials, who warn that a culture of fear is spreading through the nation’s top defense institution.

What began as a promise to eliminate what Hegseth described as entrenched bureaucracy and outdated leadership has evolved into something many insiders now describe as a loyalty purge—one that is rattling commanders, disrupting decision-making, and creating unprecedented uncertainty throughout the military chain of command.

According to multiple current and former Pentagon officials, more than two dozen senior military officers have been removed since Hegseth took office. Two service secretaries have also been pushed out, while promotion decisions across several branches have been personally scrutinized and, in some cases, blocked by the defense secretary himself.

The most high-profile casualty was Army Chief of Staff Gen. Randy George, a decorated combat veteran with more than four decades of military service.

George’s résumé reflected the type of career traditionally celebrated within military circles. He served in Iraq and Afghanistan, earned a Purple Heart, and rose through the ranks during a lifetime of service. Yet despite his credentials, he suddenly found himself on the outside looking in.

When lawmakers later pressed Hegseth to explain the decision, the secretary offered little detail.

“It’s very difficult to change the culture of a department that has been destroyed by the wrong perspectives with the same officers that were there,” Hegseth told Congress.

That explanation did little to calm concerns.

According to officials familiar with the situation, George had become viewed with suspicion because of his previous role assisting former Defense Secretary Lloyd Austin during the Biden administration. Although military aides routinely serve leaders from both political parties, some Trump allies reportedly viewed the connection as a liability.

The tension became impossible to ignore.

Sources say George sought a face-to-face meeting with Hegseth in early April to discuss priorities and improve communication. The meeting request appeared to signal an attempt to build trust.

Instead, he was fired the following day.

His departure sent shockwaves through military leadership circles.

Then came another surprise.

Navy Secretary John Phelan was abruptly dismissed weeks later. According to reports, Phelan was reportedly so blindsided by the decision that he initially struggled to confirm whether the firing was real before learning about it publicly.

Inside the Pentagon, officials say those dismissals have created a chilling atmosphere.

One official described daily operations as a constant exercise in self-preservation.

“Every single day, every decision that we made, that was a planning factor,” the official explained. “Is this going to keep the boss employed, or is this going to get him fired?”

That mindset, insiders claim, has fundamentally changed how decisions are being made.

Officials describe an environment where avoiding scrutiny has become more important than innovation. Some personnel reportedly must sign nondisclosure agreements before receiving information about certain operations. Polygraph testing, according to sources, has become increasingly common.

The result is a Pentagon consumed by caution.

Military planners and career officials now worry that mistakes—or even perceived disloyalty—could end careers overnight.

Critics argue the consequences extend beyond morale.

Several insiders claim the atmosphere of distrust has begun affecting military readiness itself.

During the tense lead-up to the recent conflict involving Iran, some strategic planners reportedly found themselves excluded from critical discussions. Key personnel who would normally be involved in contingency planning were allegedly left with limited visibility into evolving operations.

For a military that depends on coordination, communication, and rapid decision-making, such reports have fueled growing concern.

“A year-plus later, there is a lack of clear internal processes within the Pentagon,” one official said. “Everything is a case-by-case basis because there’s no delegation, there’s no trust, and if there’s no delegation or trust, policy decisions can’t be made.”

The phrase repeatedly emerging from interviews with insiders is striking: “mass paranoia.”

Supporters of Hegseth reject those characterizations, arguing that dramatic change was necessary after years of bureaucratic stagnation. They contend that military leadership must align with the administration’s priorities and that difficult personnel decisions are sometimes required to accomplish that goal.

President Donald Trump has publicly shown no indication that he intends to rein in his defense secretary.

In fact, he recently praised Hegseth in front of reporters and Cabinet officials.

“Secretary of War Pete Hegseth,” Trump joked. “He loves war.”

For supporters, it was another sign of confidence.

For critics, it underscored a growing concern: that loyalty has become the most important currency inside the Pentagon.

As more senior officials depart and questions continue to mount, the battle over the future direction of America’s military may be entering one of its most turbulent chapters in decades.

And inside the Pentagon, many are now watching their backs as closely as they watch America’s adversaries.