(A) ** To prove the Union could win the war so he could get reelected
(B) To convince European countries to support the Union
(C) There hadn’t been any major Union wins in a year so he needed it to build Union confidence
EXPLANATIONS BELOW
Concept note-1: -The war made these gradual solutions woefully inadequate. On the advice of his cabinet, Lincoln waited for a Union victory before announcing his decision. Without a victory, they feared the proclamation would only appear as a meaningless act of an embattled government.
Concept note-2: -Lincoln set a high standard for leadership in time of war. He called forth the resources of the nation, appointed the agents of victory, set the strategy, took the necessary steps to restrain those who would cooperate with the disunionists, and provided the rhetoric that stirred the people.
Concept note-3: -The Union (also known as the North) won the American Civil War. The main reasons for the Union’s victory were its superior resources (including manpower), transportation, and industrial capacity, as well as the effective leadership of President Abraham Lincoln and the military strategies of General Ulysses S. Grant.
Concept note-4: -We often associate the Civil War with the end of slavery-and for good reason. But Lincoln’s primary goal in going to war was to save the Union, slavery or not. The Emancipation Proclamation changed the equation. The Civil War began on April 12, 1861.