(1) The unbalanced development of capitalist economy and politics is the fundamental reason for the outbreak of the Second World War;

During the relatively stable period in the 1920s, with the rapid development of capitalist economy in Germany and Japan, they became increasingly dissatisfied with the Versailles-Washington system led by Britain, France and the United States.

(2) The great economic crisis in 1930s played a catalytic role in the outbreak of World War II;

The economic crisis triggered a political crisis, and Germany and Japan established fascist specialization, forming two major war sources in Europe and Asia. So "the Great Crisis led the world to war".

(3) The deliberate launching of a war of aggression by fascists is the main reason for the expansion of local wars into full-scale wars;

The Second World War evolved gradually from local wars. Therefore, stopping the regional and local wars initiated by fascism has become the primary problem to prevent the outbreak of world war. From 193 1, the Japanese launched the "9. 18" incident to invade northeast China, from 1935- 1936, the Italians invaded Ethiopia, and from1936-/kloc. Then1At the beginning of September, 939, Germany raided Poland, and World War II officially broke out. This shows that the deliberate aggression of fascism and militarism of Germany, Japan and Italy is the main reason for the expansion of local wars into full-scale wars.

(4) Whether it is "the East disaster" or "the West disaster", it has contributed to World War II.

The appeasement policies of countries such as Britain, France and the United States that condone fascist aggression have undoubtedly fueled the arrogance of fascist aggression and expansion and accelerated the full-scale outbreak of world war. The Soviet Union's neutral self-protection policy after the spring and summer of 1939 and the signing of the non-aggression treaty between the Soviet Union and Germany objectively brought disasters to the West and promoted the outbreak of the world war. In local wars, the anti-fascist forces were basically isolated, lacking assistance, and were disintegrated one by one, failing to form an international anti-fascist alliance to curb fascism's attempt to launch a world war.