Appeasement Appeasement involved a policy of making concessions to demands of an aggressive to avert conflict. During the Sudeten crisis of 1938, Neville Chamberlain, who was the British Prime Minister, instituted a policy that allowed Hitler to expand German territory unchecked to evade war. The agreement led Hitler to annex part of Czechoslovakia, previously in British and France territory, to Germany. The pact became a short-term fix after Hitler signed the Nazi-Soviet agreement with USSR in 1939. Hitler used the pact to create a strong military power, which he employed to invade Poland. In response, Britain and France, unconvinced by Hitler’s desires, declared war on Germany and initiated World War II. The Nazi-Soviet Pact Nazi refers to the signing of the German-Soviet Union Nonaggression Pact that brought a peaceful coexistence between the two countries. In 1939, the famous Germany leader, Adolf Hitler, entered into an agreement with Soviet Union Premier, Joseph Stalin. The agreement entailed the cessation of any military action between the two countries for ten years. The agreement ended British hopes of an alliance with Russia to stop Hitler and prepare for war. Then, Hitler invaded Poland without opposition. On the other hand, the Soviet leader utilized the chance, without any interference from Germany, to build a strong Soviet military. In 1941, the Nazi-Soviet Pact fell when Nazi attacked the Soviet Union. Blitzkrieg In 1939, Germany coined a powerful military tactic called blitzkrieg. Blitzkrieg involved the adoption of mobile forces that concentrated firepower locally and disorganized Poland’s rival forces. During World War II, the German soldiers successfully employed the tactic in invading its neighbor states and managed to crash the Soviet Union in six months. In the North African campaign of World War II, German military commander (Erwin Rommel) and the US General (George Patton) adopted blitzkrieg to dominate the North African region and Suez Canal. The gaining of the Suez Canal facilitated access to oil, which was critical in the mechanization of modern armies and industrialization. The Manhattan Project In 1939, Leo Szilard and Albert Einstein, after learning of Germany’s plans to build nuclear weapons, wrote a letter to inform and advise president Roosevelt to develop atomic energy. Collaborative efforts between the US and the United Kingdom (1942-1946) placed Robert Oppenheimer and Leslie Groves in the development of the Atomic bomb. The Allies developed nuclear weapons in an assembly plant in New Mexico. In August 1945, the US bombed Japanese cities and killed over 210,000 people. The destruction obliged Japan’s formal surrender on 14 August 1945 and the acceptance of Germany’s submission on 8 May 1945, ending World War II. The Yalta Conference Wartime meetings of Allies led to a second conference held in Crimea on February 4 th to 11 th , 1945. These meetings involved the US President Roosevelt, the British Prime Minister Churchill, and the Soviet Premier Stalin. The agreement reached demanded an unconditional surrender of Germany, Soviet’s permission of free elections in Eastern Europe, and a declaration of war against Japan. Additionally, the leaders developed polici