During the world War I, European countries conducted naval blockade that was intended to prevent their oppositions from receiving supplies and sold their product overseas.
At that time, USA was a neutral country that did not wanted to be involved in the war. But, the blockade still affected the traders from United States.
The blockade by the Britain army caused a lot of Damage to Germany. in retaliation, Germany started to ordered their submarines to shoot the ships that pass across the northern Sea. They intended to shoot British' ships, but a lot of American ships were caught in the crossfire. This caused the people of United States pushed the government to join the allied Forces during the war to fight off Germany.
The Albany plan of Union failed because the colonies were afraid of losing their own autonomy or self government. The British also dropped the plan because they wanted to make the management of the colonies simple.
Explanation:
I got it from the internet. So, sorry if it;s wrong
