jaydon5837 jaydon5837 02-03-2017 History contestada Why was President Lincoln’s leadership so important for the Union during the Civil War? A:The Union could not rely on good military leaders in the first half of the war. B:The Confederacy hated Lincoln and blamed him for causing the war. C:Lincoln's help was needed to ally the Union with Great Britain and France. D:General Winfield Scott refused to be the leader of Union armies.