After World War I, countries were economically poor. Two decades later Germany invaded Poland causing World War II. World War II was a long and tiresome war that lasted for six years. Along with the war, a horrific event also took place called the Holocaust. In all, the war was horrible, but to understand why the war happened, one must start from the beginning. There are many reasons why World War II started. To put into a big category, the main cause of the war is the first world war. The countries reluctantly signed the Treaty of Versailles, also known as the Peace of Paris, because it did not satisfy any country (History.com, 2009). After World War I, many countries were indebted and economically poor; this is known as the Great Depression. …show more content…
Because nationalism was at large, countries put themselves before anything or anyone else. With the ending of the first world war, people became suspicious of foreigners, and this helped justify the conquests and poor treatment within their borders. With the “aggressive territorial expansion”, dictatorship also rose (Stokesbury, 2017). Before the start of World War II, Hitler became the chancellor, fuhrer, and dictator. His party the Nationalist Socialist, Nazis, eventually became the only party. The Nazis started signing pacts and mobilizing its military. Also, the Gestapo became above the law. This is also the time the Holocaust started. The Holocaust is a period where Jews were threatened, treated unfairly, and murdered. They tried to hide the unjust through holding the Olympics in Berlin. Also during this, Germany quitted the League of Nations and violated the Treaty of Versailles. Then the invasion of Poland occurred. The invasion of Poland in 1939 started World War II. Britain, France, Australia, and New Zealand were the first to declare war on Germany. Britain was the first to launch an air attack on Germany. The United