The fall of the western roman empire contributed most directly to which circumstance?
a. the division of western europe into small germanic kingdoms
b. the establishment of the greek orthodox church
c. the feuds between religious and secular power over investiture
d. the spread of disease and the decline of the population

How do you know ? what does verne have his characters say and/or that reveal that attitude ?

What is the other battlefield of the cold war

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?