World War II: A Global Conflict

World War II, lasting from 1939 to 1945, was a global conflict that involved most of the world's nations divided into two opposing military alliances: the Allies and the Axis powers. The war was marked by significant events such as the Holocaust, the use of atomic bombs, and major battles like Stalingrad and Normandy. The aftermath of World War II saw the establishment of the United Nations and a shift in global power dynamics, leading to the Cold War era.