Foxtrot Platoon — including 19 SEALs and four support troops — was in Kuwait on Thursday, en route to Seal Team 7’s base at Naval Base Coronado near San Diego. The unit was not immediately replaced in Iraq, increasing the burdens on other American troops there, but the Navy said in a statement that “the loss of confidence in this case outweighed potential operational risk” from their absence.

Enlisted Navy SEALs at Coronado said that while individuals are occasionally removed from missions for misconduct, they could not recall another instance of an entire SEAL platoon being sent home. Last year, a Green Beret detachment from the Army’s 7th Special Forces Group was withdrawn from Afghanistan after members of the unit were implicated in the abuse of an Afghan prisoner.

The withdrawal of Foxtrot Platoon is the latest in a series of black eyes for the SEAL teams, which have been hit repeatedly over the last year by reports of drug use, misconduct and violence.

Two SEALs and two Marines were charged in the death of a Green Beret who was strangled in 2017 during a hazing incident while the commandos were on a secret deployment in Mali in West Africa. One of the SEALs pleaded guilty and was sentenced in May.

Earlier this week, Navy Times reported that cocaine use was widespread among members of SEAL Team 10, based in Virginia, and that SEALs in the team considered the Navy’s drug testing efforts “a joke.”

Accounts of broad drug use among senior enlisted SEALs emerged in the court-martial of Special Operator First Class Edward Gallagher. He was acquitted earlier this month of charges that he had shot unarmed civilians and stabbed a wounded captive to death while leading a platoon in Iraq in 2017, but he was convicted of posing for photographs with the teenage captive’s corpse.

During the trial, SEALs from his platoon testified that they had constructed a rooftop bar at their safe house in Iraq, and that officers in charge of enforcing regulations drank there with enlisted men, and even took turns acting as disc jockeys.