In the bleak, rubble-strewn streets of Stalingrad, the fates of World War II's greatest forces converged in a hurricane of bloodshed, courage and ideological fervor unparalleled in modern history. For 200 hellish days and nights through the winter of 1942-43, Nazi Germany's seemingly unstoppable juggernaut slammed against Stalinist Russia's defiant stand in this city bearing the Soviet leader's name.