William advised Lincoln to postpone the Emancipation
Proclamation until the Union has won a battle.
During this time the North suffered a string of defeats in major
campaigns against the South. Without a
victory the Emancipation Proclamation would be powerless and will have no
support to enforce it. With the Battle of Antietam, Lincoln was able to issue
the Proclamation that outlawed slavery.
Later North turned the tide and won the war and abolished slavery
throughout the United States
