Darren Le.Thu, 20th March 2014.Causes And Consequences Of WWII 1935-1945A, Why was Germany so successful in the European War up to the start of Operation Barbarossa?There are many reasons for Germany's early successful in the European War up to the start of Operation Barbarossa. For one good thing, their army was bigger and another one has the most modern military in the world in 1939. While most of European were still using biplane, and tank with 20 mm canon. The Germany artillery was in used and effective as a tank gun, anti-aircraft weapons and field artillery. The most important thing is his generals used it in a completely new way and Germany does not fight the way that European military leaders used over and over again in the past century.Another reason for Germany's successful in World War II is that they had the best military leaders in the world, who are better strategies and tactics and most of them who were experienced through World War I. They also well prepare for the war. German got a lot of money from all over the USA and Europe in order to help them to buy more military weapons.Germany was more willing than other nations to go into a more war oriented economy. On another hand, other nations and their population and leaders wanted peace more.Preparation prior to the invasion of Poland on 1st September 1939 such as the unification of Austria and Czechoslovakia which creates a springboard for attacking PolandOn September 1939, Nazi Germany made decision to invade Poland; the act that started World War II. They have to be well prepared with their military as well as their best plan to reach to the destination without any mistakes. German has had to take over Austria and Czechoslovak to help German and to support their plan to invade Poland in 1939.The day before, Nazi Germany had posed to the Polish military officers for an attack to the radio station in Silesian city. Germany used that event as a pretext to invade Poland.German well prepared for invade Poland by increase the Germany's military, more tanks built, more guns, more anti-tanks gun increase. German Navy was built and Air force made more jobs. German mostly cares about military and agricultural. Hitler encouraged youth boys to join the army to support the country needed or German army got woman whom to stay at home to raise their young children to be prepared for the future Nazis. Hitler also boosted the Germany's Economy.The people are also important in the invasion. People were given gas masks, shelters and had to have some how to blacking out the window for the purpose of no acknowledge of the targets for the enemies.Nazi-Soviet non-aggressive pact which keeps Russia out of the conflict until Germany invades them in 1941On August 23th, 1939, representatives from Nazi Germany and the Nazi Soviet met and signed the Nazi-Soviet non-aggression Pact, which is mean that guaranteed that two countries would not be able to attack each other. By signing the Nazi-Soviet...