The interwar period was the time lapse between World War I and World War II. Countries like USA, Britain, Germany, France, Italy, China, and Japan were all going through a lot of changes. Some positive and some negative. Britain, United States, and Germany had very negative economic changes. The British stopped working and had an absurd amount of unemployment. Their government kept pushing them and making the people work as if they were still in war. On the other hand, Germany had NO money. They had to pay the rest of the countries the damages they had provoked during World War I. Some American Investors bonded with Germany and made their way into recovery. But that worked until the Stock Market crashed. Not only did the American economy make a ridiculous turn, but it brought the German economy down with it. France pretty much depended on German money, but when they realized the cash wasn't going to come to them that quickly, they decided to attack. Once more lost a large variety of men, not only that, they also lost MORE money. Italy entered a type of depression because they weren't granted with the territories they wanted. They needed those territories in order to increase their financial economy. Most countries were going through negative and conflicting processes. But that's not it, some actually had success in other things...
Germany started with the idea of Fascism. They began a program called "The Twenty-Five Points", which denied all the terms of the Treaty of Versailles. During the parliamentary elections the Nazi party won and put Adolf Hitler as their leader. It was believed that the Nazis were going to increase the military power and maintain the world in control and order. If Hitler might have been in the US instead, the economy would have gone up, and would have gained more power than it already had. The US by itself was a powerful country, but with the ideology of Hitler, its power would have been greater. Not only that, but its economy would had gone up by at least 30% because with the money that the US already had, and all the countries they could have conquered its economy would have been outstanding.
I believe that the interwar period was a time that countries needed to "heal" from WWI. It should had also been a time of planning and learning from mistakes. The country I believe did a decent job at that was Germany. At first, they did follow the "instructions" they were given, but then they became rebels in a way and basically ended up conquering so much territory and had a power that was almost undefeatable.
