The idea for the blockade was similar to laying siege in the Middle Ages. What did Britain hope to achieve by placing the blockade in place?

Great Britain wanted to achieve with its maritime blockade on the eastern seaboard destroy the American trade, and leave it at a disadvantage in the face of the war they were fighting.  

Explanation:

Since the Middle Ages, "the blockades" known as "besieging" were used to conquer territories through military force and wear down their enemies, as they did not have how transport supplies or troops that would help in wars.

Great Britain was a country that was blocked by France during the war for the territory in 1806 where Napoleon blocked Great Britain and England intending to ruin their economy and make it easier to take over the territory.

During the war between France and Great Britain, the United States saw an opportunity to invade Canadian territory that belonged to Great Britain.

Britain as a means of defense against the attacks of the United States also applied a blockade, which affected the United States economy by not being able to trade on the eastern coast. Said blockade was used to paralyze the American attacks.

Great Britain at the moment of winning the war against France decided to attack North America, in the same way, the United States attacked Great Britain, this war came to an end with a peace treaty, and the invaded territories returned to the conquerors before the war.

I hope this information can help you.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.