Where did World War 1 start and how? How did World War 1 affect the world?
How, why and when did World War 1 start?
How did World War Two start? What started World War 2? Who started World War 2 and why? What started World War II? Did World War 3 already start? Why did World War 2 happen? Who started World War I and World War II? When did world war 2 end? Why did World War II happen? Why did Russia, Germany, France and UK enter World War 1? Why did the US and Vietnam War start? Why World War 2 start and how? What were the impacts of World War 2 in Europe? When did the World War end? What was the real cause of World War 2? What were the main countries involved in World War 1? How did they got involved? If there was a world war III around this time period what would most likely be the start of it? Why isn't the Seven Years' War considered the first World War? Who won World War 1? What was the reason behind World War II? How and why did the Cold War start? If World war 3 happened, what countries would likely start the war and why? How was militarism a cause of World War 1? Why did World Wars I and II happen? What are the factors that led to world war 2? Were Germans the only reason to start World War II? Cold World War 3 has began? Why did Japan enter World War I? What was World War II? What did World War 2 look like? How and why did Vietnam's war start?