The Navy is readying for Congress a proposal for a future long-term buy of Arleigh Burke-class destroyers beginning in fiscal year 2023, a package that would mark a fifth multiyear procurement and potentially the final bulk order of DDG-51s before the service transitions to a planned follow-on Large Surface Combatant. A Navy official said the service will seek authorization for a new destroyer purchase -- that would focus on Flight III variants of the DDG-51 -- extending late into the...