Who was given the responsibility of winning the war for the north?

President Abraham Lincoln ultimately held the responsibility for winning the Civil War for the North, as he was the Commander-in-Chief of the Union forces. He appointed several generals to lead the Union Army, with Ulysses S. Grant emerging as the most prominent figure in the latter part of the war, overseeing key campaigns and strategies that contributed to the Union's victory. Lincoln's leadership and strategic decisions were crucial in guiding the North toward success in the conflict.