O que estuda a história?

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?

Neutrality is no longer feasible or desirable where the peace of the world is involved and the freedom of its peoples. —war message to congress, woodrow wilson how does wilson use the meaning of the word freedom to justify war?

All of the following were grievances against the king of england except: