Identify two important source countries for U. S. immigration during the early 20th C (until WWI) and explain 2 major pull factors for immigrants from the 2 countries you identified.

what do you                                                                                                                                              

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.