Discover the real reasons behind Japan's Pearl Harbor attack: Oil embargo pressures, imperial ambitions in Southeast Asia, Yamamoto's flawed strategy, and critical intelligence failures that changed WWII.

Exact date the US entered WWII after Pearl Harbor, with analysis of pre-war isolationism, military transformation, production stats, and how December 8, 1941 changed global history forever.

Comprehensive analysis of what happened in 1941: Operation Barbarossa, Pearl Harbor attack, societal shifts, technological breakthroughs, and hidden impacts of this pivotal WW2 year.