This book presents background information and potential oversight issues for Congress on the Navy's Arleigh Burke (DDG-51) and Zumwalt (DDG-1000) class destroyer programs. The Navy's proposed FY2013 budget requests funding for the procurement of two DDG-51s. The Navy for FY2013 is also requesting congressional approval to use a multi-year procurement (MYP) arrangement for the nine DDG-51s scheduled for procurement in FY2013-FY2017. Decisions that Congress makes concerning these programs could substantially affect Navy capabilities and funding requirements, and the U.S. shipbuilding industrial base.