Ulysses S. Grant
Evidence:He is willing to fight.
Warrant 1:The fall of Vicksburg gave the Union Army control over the Mississippi River and split the Confederacy in two.
Warrant 2:Took the entire army over the James River to capture Peters-burg.
Warrant 3:He narrowly escaped death when Conf. Spies blew up an ammunition barge. He continued to push his Union forces westward.