The Littoral Combat Ship (LCS) is a relatively inexpensive Navy surface combatant equipped with modular "plug-and-fight" mission packages. The Navy wants to field a force of 55 LCSs. Twelve LCSs have been funded through FY2012, and the FY2013-FY2017 Future Years Defense Plan (FYDP) calls for procuring 16 more, in annual quantities of 4-4-4-2-2.