<h3>Answer:</h3>
A) a fear of European involvement in Latin America.
<h3>Explanation:</h3>
The Monroe Doctrine was a United States strategy of confronting European colonialism in the U.S starting in 1823. It declared that additional efforts by European states to take charge of an independent nation in North or South U.S would be observed as "the demonstration of a contrary disposition proceeding the United States." At the same event, the doctrine perceived that the U.S. would realize and not interpose with surviving European colonies nor interrupt in the internal affairs of European lands.
Because he led the union armies to victory over the confederacy in the american civil war
