Based on the article from the new york times, what was one purpose of the underground railroad

How did the union blockade of the southern coast affect the confederacy? it forced the confederacy to build new railroads. it contributed to shortages of weapons and food. it encouraged europe to trade with the south. it halted all trade, leaving the south without supplies.

Can someone me write a paragraph on this topic i feel confused

How did toussaint l’ouverture become a leader of the haitian colonies