1. At first the allied powers could not understand how to check the German Blitzkrieg. Soon they learned from their early furfures and started to check Blitzkrieg. The allied powers realized the importance of our support and naval power which helped them to win the war. 2. Another reason for the axis failure was shortage of raw materials. Both Italy and Japan had to supplies. Germany was short of rubber, cotton, nickel and oil. To win the war a constant supply of raw materials was urgently needed and in this point the axis powers were very much handicapped. 3. The combined resources of America, Britain and USSR were so great that it was impossible for the axis powers to win the war. By 1945, Russia had four times as many as tanks as Germany and could put twice as many men in the field. USA also increased their production of tanks and aircraft in such a way which ultimately changed the tide of war in favour of allies. 4....