The LCS is the first USN surface combatant class in a generation to not use the Aegis Combat System, though Aegis-equipped variants have been offered to foreign customers. They have suffered from problems in their communications and radars and will require refits in these areas. Neither LCS class is able to defend itself effectively against anti-ship cruise missiles, which are commonly employed in the littorals, but does have survivability via its ability to disperse in shallow waters better than larger warships.