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Stern said: aircraft carrier battle itself is not strong, the development of the aircraft carrier escort vessels also have to carry out, and the role of the carrier battle against, some of warships into the improvement of research, my opinion is a carrier battle group, the basic composition should have a ship aircraft, a fearless class battleships, one to two cruisers, four torpedo destroyers, four frigates, one to two combat support supply ship, if it is landing operations, should also have landing craft, as well as other one torpedo caused Composition and other small ships, so warships will focus on aircraft as the core, forming a powerful sea and air battle cluster. active key for windows 7 professional,buy windows 7 professional activation key download