How has petroleum affected the countries that export it

can you explain it better

delete this messag epls it wont let me out this exit2

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.  

i believe that the answer to the question provided above is that the role of campaign committees is to act as a bridge between state and local campaigns.