What were two effects of isolationism on the US?

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?

Which of the following describes an effect of nationalism on european colonies during the with century

20 points what two developments led to the decline in the naval stores economy of northeastern and southern north carolina in the 1800's and early 1900's