The United States really didn't want to get involved in either of these wars, however the decision to enter WWII was far easier since the Japanese bombed Pearl Harbor. After WWI, the Us become havily isolationist, while after WWII they were forced to be more engaging since the Col War was underway.
One of the major long term effects of the War of 1812 was that, although it technically ended in a stand-off between America and Britain, it greatly boosted the confidence and nationalist sentiment of Americans, since it proved once again that they could fight of a major world power.
To prevent government and individuals from harming others. To establish a basic set of morals that everyone in society should adhere to. To enable individuals to understand what behaviors and activities are appropriate.
The main reason why the North needed to maintain control of the border states during the Civil War was because "(B) President Lincoln needed the region’s political support to maintain <span>the presidency," since these states remained loyal to the Union but were not necessarily "free states". </span>
