The Underground Railroad was the name of the escape routes used by slaves to escape the South and flee to the North. It was a network of special routes and safe houses that were used by both slaves and abolitionists who were sympathetic to their cause of escaping slavery. It started in the late 1700's and ended after the abolition of slavery. Canada was a popular destination, as slavery was prohibited their and had a longer border for easier access.
Hey
So Joseph Stalin if the Soviet Union wanted the German army fighting in two fronts.
This mean that the German army would be stretched across 2 places right?
So he pressured the allies to land in the west of Germany to relieve the pressure on the Soviets fighting at East.
So the allies(USA,France,UK, and some Canadian troops) land at Northern France and the US itself land near St Mere Eglise
Hope this helps,Happy New Year