The Navy has fired nearly a dozen officers in leadership positions in less than three months, including five in one week, due to a “loss of confidence” in their ability to command — an unusual string of terminations across land, air and sea teams, experts said. At least nine commanding officers and two senior advisers have been relieved of their duties since April, when a cluster of suicides on the USS George Washington warship sparked widespread concerns of a mental health crisis. A total of 13 commanding officers have been fired so far this year, including 12 in the Navy...