World War II was the largest and most far-reaching war in human history in the 20th century, dating back to September 1, 1939. The following is a detailed introduction to the outbreak of World War II in many aspects:
1. Background: The outbreak of World War II has a profound historical background. After the end of the First World War, there were profound political, economic and social changes around the world. In the thirties of the 20th century, there was a general economic crisis in all countries of the world, protectionist policies were adopted one after another, international political relations were tense, and the clouds of war hung over the world. Nazi Germany, Italy, Japan and other countries rose rapidly against this background, and the expansion and aggression of the rising countries further complicated the international situation and accelerated the outbreak of World War II.
2. Causes of the outbreak:
German invasion of Poland: On September 1, 1939, Nazi Germany ordered the invasion of Poland, which was the trigger for the outbreak of World War II. Hitler tried to rebuild Germany's borders, and Poland became his target, but also to test whether Britain, France, and other countries would come up with strength to confront Germany.
Failure of the Munich Agreement: The Munich Agreement of 1938 attempted a diplomatic solution to the Czechoslovak question, but it was in fact only a temporary compromise. When Germany began to implement the plan of the Third Reich to carve out the territory of the so-called "German nation" from German territory, the compromise between Britain and France turned into the biggest diplomatic mistake in the world.
Italian invasion of Abyssinia: In 1935, Italy launched a war of aggression against Abyssinia, which further increased international tensions, although it was sanctioned by the international community.
Japan's invasion of Northeast Asia: Japan's invasion of Northeast China led to the September 18 Incident, which shocked China and the rest of the world, and then launched the Lugouqiao Incident, which further worsened the war between China and Japan.
Invasion of Poland: After Hitler's invasion of Poland in 1939, Britain and France declared war on Germany, officially beginning World War II.
Third, the development process:
After the outbreak of World War II, countries joined the war one after another, and the war quickly spread to the whole world. The European theater was mainly a war between Germany and Britain and France, the North African theater was a war between the German army and the British army, and the Pacific theater was mainly a war between Japan and the United States and Britain. In this war, many tragic events occurred, such as the Nanjing Incident, the Pearl Harbor Incident, the Battle of Stalingrad, etc., each of which deeply shocked people's hearts.
IV. The Outcome of the War:
After the end of World War II, Hitler committed suicide, Germany surrendered, and the Nazi regime collapsed. Japan announced its surrender after the atomic bombing by the United States, and the nations of the world worked together to establish the United Nations Organization for the establishment of a lasting peace.
Overall, the outbreak of World War II was the result of an interplay of many factors. Historically, it has had a profound impact on the global political landscape, economic development, social structure, etc., and it has also become an event with great lesson and warning significance in human history. It is to be hoped that we will be able to learn from the lessons of the Second World War and work together to maintain world peace and security.