The Pentagon's top leaders fielded questions and took some criticism today from senators concerned about defense spending and whether the U.S. military is appropriately postured to deter China. Defense Secretary Lloyd Austin and Chairman of the Joint Chiefs of Staff Gen. Mark Milley told the Senate Armed Services Committee the Pentagon’s $715 billion fiscal year budget request is sufficient to defend the nation and modernize U.S. weapon systems. “The request is driven by our recognition that our competitors -- especially...