To feel like they belonged, had protection
Because of the War of 1812, James Madison followed in Washington's steps and advocated economic nationalism. The War in his eyes showed that there is a need for a stronger federal government and that US had to have stronger military and better economy. That is why his presidency was a nationalist one and not focused on the individual rights of the states.
Q1: D) the US warning European interference in Latin America would lead to US intervention
Q2: A) it served as a key naval base during the Spanish American War
Proof of Q2:
"When war broke out with Spain in 1898, the military significance of Hawaiian naval bases as a way station to the SPANISH PHILIPPINES outweighed all other considerations. President William McKinley signed a joint resolution annexing the islands.