It is because the Union victory placed the Confederacy on the defensive and ended Gen. Robert. E. Lee's most ambitious attempt to invade the Union's territory.
Answer:
An embargo is a ban on trade with a country. And cuba was a poor country, and the US was a good trading partner for awhile, but then during the cuban missile crisis we hit them with an embargo, and this ruined any relation we had with them.
Explanation: