Why did inventors and sailors develop better tools for navigation?

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?

How are isolationism and nativism related ? in the 1920s what actions did americans take that reveal their distrust of others

What is a human capital and what is one important way you can invest in your own human capital?