The Navy will have to spend $34 billion per year on shipbuilding, 10% more than service estimates, to enact its recent shipbuilding plan to grow the fleet, according to an analysis the Congressional Budget Office released Thursday. The plan , released last December by the outgoing Trump administration, calls for a 400-ship battle force fleet along with a total of 119 unmanned surface vessels and 24 unmanned subsurface vessels by fiscal year 2045. The plan would require average annual shipbuilding...