World War I was connected to WWII because the Treaty of Versailles made Germany fall into The Depression. Then Hitler took control of Germany as dictator and lead the invasion of Poland which lead to World War II.
World War 2 was caused as a consequence of WW1. The treaty signed at the end of the first war, Versailles treaty, was unfair towards the Germans. Hitler wanted to get back the territory he lost,...
Note: this answer only discusses similarities. There were of course many differences not mentioned.Both wars involved many different countries, multiple theaters of war, and extreme destruction and...
World War I started as a long chain of events that began with a small assassination. Franz Ferdinand, the heir to the Austrian throne, was murdered by a Serbian terrorist group called the Black Hand,...
Sitzkrieg (the opposite of blitzkrieg) was displayed in World War One in the trenches when neither side gained very much ground. Also shown at the battle of Stalingrad.