The Defense Department will submit a fiscal year 2016 budget that is above the sequester spending caps and includes all the same efficiencies Congress has rejected for several years now, Chairman of the Joint Chiefs of Staff Army Gen. Martin Dempsey said Wednesday at the Defense One Summit. “We need additional topline for the emerging and new requirements,” he said. “Six months ago we weren’t talking about a European Reassurance Initiative, we weren’t talking about spending 18 months or so…