Answer:
a political theory derived from Karl Marx, advocating class war and leading to a society in which all property is publicly owned and each person works and is paid according to their abilities and needs
Explanation:
The Vietnam war was in favour of the Northern revolutionary forces. Just after the war, a peace treaty was signed which allows a government to be initiated in the Southern Vietnam, to find out that it has become a puppet government of the North, therefore, Vietnam remained to be a communist state.
The working together of political opponents during the aftermath of the War of 1812 was a sign of the Era of Good Feelings. The Era of Good Feelings was a time period in American history where there was a sentiment of national purpose and a desire for unity after the Americans came out victorious from the War of 1812 and finally felt fully in charge of their own country.
I don't know you have to study this.