The U.S. Navy Independence LCS-2 Littoral Combat ship sea trials in the Atlantic Ocean near Florida again. The Littoral Combat Ship is the first design of the U.S. Navy's next generation of surface warships. As the coastal region (near the coast) operations, the relatively small surface ships, the LCS is smaller than the Navy's guided missile destroyer. The U.S. Navy is expected to build 55. This type of warship layout. Independent ship for the second three-body layout design.

LCS standard armed is a Mk 110 57 mm cannon, and can be selected according to the different tasks kit non-linear horizon launch system (Non-Line-of-Sight Launch System), Mark 54 MAKO Lightweight Torpedo and other armed. It also equipped with unmanned aerial, surface and underwater vehicles. LCS emphasis on speed, depending on the type of combat missions the flexibility to adjust the module space and a shallow draft.

Anti-submarine modules: for anti-submarine warfare, including one equipped with dipping sonar, sonar buoys and torpedo the MH-60R anti-submarine helicopters, the ship is also equipped with three MQ-8B. Shipboard equipment, including a lightweight active broadband darken sonar (LBVDS,), a AN/SQR-20 multi-function towed array sonar (MFTA), which LBVDS MFTA a complete set of Active / Passive drag array sonar system.