Monroe doctrine
Monroe doctrine warns European countries to not colonize or puppet monarch
The Columbian Exchange is marked by the exchange of plant and animal life between the Old and New Worlds. The exchanges<span> of plants, animals, diseases and technology transformed European and Native American ways of life.</span>
A) Robert R. Lee and i'm almost 100% positive mark me brainlest
Grover Cleveland was the president in 1887
A need for an established government in order to maintain peace. A government is able to implement laws and taxes.
