Despite the saying, we're not completely convinced that everything old is new again. But in the case of the Second World War, nothing could ring truer. Although the greatest conflict in history ended 60 years ago, World War II remains a reliable backdrop for strategy, action, and simulation games for the PC, and many of these recently released titles are top-notch. They'll let you experience the battles of WWII on the ground, in the air, and under the sea.