Littoral Combat Ship's (LCS's) Mission Statement

LCS's are fast, agile, warfighters designed for operation in near-shore
(littoral) environments. They are also capable of open-ocean
operation.

They are outfitted with mission packages consisting of mission systems
and support equipment that deploy manned and unmanned vehicles
and sensors in support of mine countermeasures, anti-submarine
warfare or surface warfare missions.

Their mission is designed to defeat "anti-access" threats
like fast surface craft, mines, and quiet diesel submarines.