In 1863, the nature of Civil War shifted. On a January 1st of that year, President Lincoln issued the Emancipation Proclamation, freeing slaves in the Confederate states... With the Emancipation Proclamation, the struggle between North and South transformed into a war to end slavery.
He gave a speech praising men who refused to serve in the military.
Concert of Europe: Also known as the Congress System or the Vienna System after the Congress of Vienna, a system of dispute resolution adopted by the major conservative powers of Europe to maintain their power, oppose revolutionary movements, weaken the forces of nationalism, and uphold the balance of power.