What were the main causes behind the start of World War 2 and how did the world react?
Why World War 2 start and how? What were the impacts of World War 2 in Europe?
Why did World War 1 started? What were the effects? Where did World War 1 start and how? How did World War 1 affect the world? Why did World War 1 take place? What were the political causes? What were the 4 main causes of World War 1? How did each affect the outcome of the war? What were the causes for World War 1? How and why did the world war 1 start? What situations led to World War 1? How, why and when did World War 1 start? What was the cause for World War 1? What were the main countries involved in World War 1? How did they got involved? How do you describe the causes of World War 1? Why and how did World War 1 begin in 1914? Why did Russia, Germany, France and UK enter World War 1? What were some of the most important causes behind World War 1? When did world war 2 end? What were the main and most important political causes of World War 1? What were the causes of World War I? What was the main cause that ended World War One? How did World War 1 come to an end? What are the reasons for World War 1? How did the map of Europe change after WW2? What were the main and most important economical causes of World War 1? If World war 3 happened, what countries would likely start the war and why? What was the sequence of events that led to World War 1 breaking out in 1914? Why did the U.S. become involved in World War II? What were the causes of ww1 war? What were the causes and effects of WW1? What were the major effects of WW1? What was the main cause of World War One? What were the main and most important social causes of World War 1?