Appropriations and expenditures Procurement Shipbuilding Costs Naval architecture Government policy Operational readiness Sea-power Shipbuilding Military policy Planning Foreign relations Amphibious assault ships Armed Forces Cruisers (Warships) Security, International Warships Warships Costs AEGIS (Weapons system) Aircraft carriers Boats Defense contracts Destroyers (Warships) Geopolitics International status Laser weapons Law of the sea National security Naval auxiliary vessels Nuclear aircraft carriers Nuclear ships Nuclear submarines