France and Great Britain (and most of the commonwealth countries) declared war on Germany as a result of their invasion of Poland.
The invasion of Poland by Germany in Europe in 1939 caused the start of World War II. It was the line drawn in the sand.
the german invasion of Poland
Poland, on 1 September 1939
Poland, Austria and Chechozlovakia.
Britain and especially France wanted revenge for world war one by writing it into the Treaty of Versailles, but others, Americans included, realized that this would be a disaster, and caused the Treaty to be worded less harshly. It didn't work. World war two was the result.
France
Poland was the first country to be attacked during World War 2. In fact, the Germany invasion of Poland was what CAUSED World War 2.
Adolf Hitler caused World War 2 when Germany invaded Poland. The British and French allies honored the treaty of Versailles with Poland, and World War 2 began.
It wasn't any single country. Germany missed the empire they had lost, and resented the terms they had to agree to in the Treaty of Versailles. But there were lingering bad feelings and unfinished business left over from World War I, all around. Hitler's invasion of Poland
The invasion of Poland by Germany in Europe in 1939 caused the start of World War II. It was the line drawn in the sand.
The immediate cause was Germany's invasion of Poland in 1939, but there were many underlying causes of the war, most which dated back to the conditions of the Treaty of Versailles after World War I.
World War 1 and World War 2. World War 1 was caused due to assination World War 2 was caused due to Invasion of Poland, Allies not stopping germany from blackmailing countries and breaching the agreements of the treaty of Versailles.
Treaty
Had a treaty with Poland
World War 2 essentially began in Poland when Hitler invaded it. It was a violation of the Versailles Treaty. This resulted in countries declaring war on Hitler.
No.
The Nazis invaded Poland and this was the start of World War 2. Other countries declared war on Germany because of what they did to Poland and because he violated the Treaty of the Versailles.