Mechanized warfare aids Germany's advance into France; a look at the way commando raids, blitzkrieg, mobile desert warfare and amphibious landings changed warfare.

The battles of World War II increase in sheer size of the forces involved as well as the power of their weapons; a look inside German strategies for Operation Barbarossa, as they attempt to invade the Soviet Union.

British forces are cut off at Dunkirk as unstoppable Nazi forces tear through Western Europe.

German invaders become surrounded and doomed to capture or death at the hands of the Soviet Red Army during the Battle of Stalingrad.

Campaigns are waged against non-military targets to undermine morale; when traditional methods fail, suicide attacks are launched.

In actions large and small, forces, climate, geography and problems of supply must all be managed; Japan gathers naval strength for an attack on Midway Island in an attempt to lure U.S. naval vessels into a trap.