Isolationism was the policy that kept them from joining the League of Nations. Isolationism is when a group stays away from or ignores all people in that group. Mainly political matters of other countries.
If u don't need help don't ask it on brainley it is for school work only
Pros: World is more connected, people are better informed about current events
Cons: People spend more time online, thieves can steal personal info
Capitalism
Capitalism is an economic system in which private individuals or businesses own capital economic system in which private individuals or businesses own capital goods. The production of goods and services is based on supply and demand in the general market