World War II is generally considered to have begun on 1 September 1939, when Nazi Germany, under Adolf Hitler, invaded Poland, after which the United Kingdom and France declared war on Germany.

Dec 10, 2025 · World War II began when Germany invaded Poland on September 1, 1939. This followed German resentment over the terms of the Treaty of Versailles after World War I and Adolf Hitler’s …

May 2, 2025 · World War II started in 1939 when Germany invaded Poland, leading to a global conflict. Key events included the Battle of Britain, Pearl Harbor attack, and D-Day invasion. The war ended in …

Oct 29, 2009 · On September 1, 1939, Hitler invaded Poland from the west; two days later, France and Britain declared war on Germany, beginning World War II. On September 17, Soviet troops invaded …

Sep 6, 2007 · World War II officially began on September 1, 1939, when Nazi Germany invaded Poland. Below is a timeline tracing some of the important events of the first week of September, 1939.

September 1, 1939 World War II Begins Germany invades Poland, inciting Poland’s allies Britain and France to declare war on Germany.

On September 1, 1939, Germany invaded Poland, marking the beginning of World War II. The invasion was carried out under the pretext of defending German ethnic minorities and was characterized by …

Nov 15, 2021 · World War II was the largest and most destructive conflict in history. Learn about key WWII dates in this timeline of events, including when WW2 started and ended.

May 17, 2022 · WW2 timeline: 20 important dates and milestones you need to know Lasting six years and one day, the Second World War started on 1 September 1939 with Hitler's invasion of Poland …

2 days ago · World War II began in Europe on September 1, 1939, when Germany invaded Poland. Great Britain and France responded by declaring war on Germany on September 3. The war …