Breakfast meetings, happy hours and group chats across Washington are abuzz with the same question: Who gets axed next? The big picture: The ousters this month of U.S. Navy Secretary John Phelan and Army Chief of Staff Gen. Randy George , alongside two other service leaders, have intensified Pentagon palace intrigue. The nerves are particularly charged inside the building. Driving the news: At least 15 defense officials have abruptly left or been pushed out of their jobs under Trump 2.0. The exits, civilian and uniform, are the results of clashing politics, policies and personalities. What they're saying: "There's a lot of confusion and head-shaking," an administration official told Axios, describing the vibe this week. "It feels so much like petty, high-school or middle-school drama," the person added. "You have this pervasive, 'Oh my gosh, what is the next perceived slight that is going to upset the Mean Girls.'" Zoom in: Relations between Phelan and Hegseth deteriorated over time.…