What were the differences between World War I and World War 2?

Answer 1

• Causes
• Timeline and Technology
• Political Situations
• Regions
• Countries

The causes for each were not entirely the same. Before WWI countries were content to wage war on each other relatively indirectly, for control of the colonies and their resources. After WWI, the possibility of directly attacking other European countries was once again raised. WWI started due to the assassination of Archduke Ferdinand. It involved several countries because a lot of countries had agreed to help each other if war came. It was called The War to End all Wars, or The Great War.

World War II started when Germany again began it's expansion into Europe A lot of countries didn't like that, and so there was another huge war. It didn't make sense to say 'The War' anymore, and so they came to be called World War 1 and World War 2. The Japanese, expecting America to be occupied in the European war, and considering America as a threat to it's Asia-Pacific hegemony declared war on the Americans.

World War 1 came first. Technology was relatively primitive, with most of the war being done in trenches. Early airplanes were used. Poisonous gas was deployed for the first time.

In World War 2, tanks were used as the main deployment in many areas. Planes had improved, and bombers and fighters were heavily used. Submarines were also more heavily used. Encryption codes for secret also became more complex.
World War II had much more casualties because of the more advanced weaponry used in active combat like aircraft and aircraft carriers, which played a much bigger role in World War II than World War I. World War I casualties were estimated at 10,000,000. World War II casualties were huge; 55,000,000, 5.5X the casualties in World War I. Trenches and infantry assault was much more common in World War I than World War II. In World War II, nuclear power and missiles were used, modern concepts of covert and special operations were implemented, submarines and tanks were more heavily used, encryption codes for secret communication became more complex, and Germany used the blitzkrieg method, which dominated military tactics in the first few years of WWII.