Compare one of the Union's military leaders at the beginning of the war (George McClellan, Ambrose Burnside) with one of its military leaders later in the war (Ulysses S. Grant, William Tecumseh Sherman). How were they alike or different

Which is the most accurate description of the executive office of the president? groups of advisers who the chief of staff groups of advisers who the president groups of advisers who oversee national security groups of advisers who oversee the economy