World War II Overview

world war ii overview world war ii (wwii or ww2) was a global war that lasted from 1939 to 1945, involving the majority of the world's nations—including all of the great powers—eventually forming two opposing military alliances the allies and the axis www google ro https //www google ro key events 1939 germany invades poland, marking the beginning of the war 1941 the united states enters the war after the japanese attack on pearl harbor 1944 d day, the allied invasion of normandy 1945 germany surrenders in may; japan surrenders in september after the atomic bombings of hiroshima and nagasaki major participants allies united states, soviet union, united kingdom, china, and others axis germany, japan, italy, and others outcomes the war resulted in significant geopolitical changes, including the emergence of the united states and the soviet union as superpowers and the beginning of the cold war the united nations was established to foster international co operation and prevent future conflicts this document provides a brief overview of world war ii, highlighting key events, participants, and outcomes