In the battle of gettysburg what was lincolns main issue of the war

The battle led to the Gettysburg Address in which Lincoln redefined the Civil War as a struggle for freedom and democracy. Land preservation efforts began immediately after the Battle of Gettysburg and resulted in a national cemetery, consecrated by Lincoln on November 19, 1863

Explanation:

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.

the correct answer is 50.