How did the start of World War 2 unfold?

Answer 1

World War II began on September 1, 1939, when Germany invaded Poland, prompting Britain and France to declare war on Germany two days later. This invasion was facilitated by the Nazi-Soviet Non-Aggression Pact, which allowed Germany to attack Poland without fear of Soviet intervention. The war rapidly expanded as Germany continued its aggressive expansion across Europe, leading to conflicts involving multiple nations worldwide. By 1941, the war had escalated further with the entry of the United States after the attack on Pearl Harbor.