In this war fought most of the nations of the world, which were grouped in two big alliances: the allies and the powers of the axis.
It was the biggest clash of the History, with more than hundred million military men and a condition of total war in which the big powers spent in economy, military and scientific force to the service of the warlike effort, erasing the distinction between civil and military resources.
This war took terrible consequences as the massive death of civilians, the Holocaust and the use, for the first and only time, of nuclear weapon in a military conflict, the Second World war was the most deadly conflict in the history of the humanity, with a final result of between 50 and 70 million victims.
The Second World war began when alemania invaded Poland. The intention of Germany for creating an empire for the whole Europe gave step to the declaration of war on the part of France, the British Empire and the Commonwealth to the Third Reich.
In 1941 the European powers of the Axis began an invasion of the Soviet Union, initiating the most extensive operation of war of the History, in this moment there was used most of the military power of the Axis. In December, 1941 the Empire of the Japan, which had been in war with China since 1937 and was trying to expand his domains in Asia, attacked to The United States and to the European possessions in the Pacific Ocean, Obtaining in this way the most part of the region.
The advance of the Axis was stopped in 1942 after the defeat of Japan in several naval battles and of the European troops of the Axis in the North of Africa and in Stalingrado's decisive battle.
The war in Europe ended with the capture of Berlin for Soviet and Polish troops and the consequent unconditional German surrender on 8 May 1945.
The Imperial Japanese Navy turned out to be defeated by the United States. After the atomic bombardment on Hiroshima and Nagasaki of the United States, the war in Asia ended on 15 August 1945 when Japan accepted the unconditional surrender.
The war finished with a total victory of the Allies on the Axis in 1945.
The United Nations Organization (UNO) was created after the war to promote the international cooperation and to anticipate future conflicts.
The Soviet Union and the United States rivals raised as superpowers, the scene being established for the Cold War, which extended for the following 46 years.
The majority of the countries which industries had been damaged initiated the economic recovery, whereas the political integration, specially in Europe, emerged as an effort to establish the relations of postwar period.
LORENA FERNÁNDEZ SÁNCHEZ