Two of the officers targeted by Mr. Hegseth are Black and two are women on a promotion list that consists of about three dozen officers, most of whom are white men, senior military officials said.

Mr. Hegseth had been pressing senior Army leaders, including Army Secretary Daniel P. Driscoll, for months to remove the officers’ names, military officials said. But Mr. Driscoll, citing the officers’ decades-long records of exemplary service, had repeatedly refused.

Earlier this month, Mr. Hegseth broke the logjam by unilaterally striking the officers’ names from the list, though it is not clear he has the legal authority to do so. The list is currently being reviewed by the White House, which is expected to send it to the Senate for final approval. A few female and Black officers remain on the list, military officials said.