As depression took hold of the world, a new war began, World War II, the worst war in American history. A big cause of the war was the rise of dictators in the European countries. There were many positive effects that came out of the war. New opportunities were in store for the American women. Opportunities emerged giving women the privilege to show what they were capable of. In addition, the economy rose drastically. There was a growth in economy due to the mass production of war material. The president ended segregation giving many different races great new benefits. Also, the United States became a world power. The atomic bomb changed the way the United States was looked at by other nations.