What does the author describe in the passage?

How do you think american life would change greatly, as soldiers went to war in europe?

Germany italy and japan formed the tripartite pact in part because they: a. hoped to convince the united states to stay out of world war ii b. share the ruling philosophies based on communist economics c. resented the agreements they were forced to sign at the munich conference d. believed their territories were threatened by aggressive foreign states

Who did the first work in creating vaccines