General Winfield Scott proposes a strategy known as the Anaconda plan to "strangle" the south with a naval blockade
Robert E. Lee led troops to Maryland which resulted in the Battle of Antietam, which is known as the bloodiest day of the Civil War
To make the Civil War more about slavery, Lincoln created the Emancipation Proclamation which freed slaves in states that were still in rebellion. This was to avoid the risk that Britain and France would intervene and side with the confederacy.
General Lee advanced confederate forces into the south but were defeated in Gettysburg
General Ulysses S. Grant takes Vicksburg which gave him control over the entire Mississipi River Valley
After the Battle of Gettysburg, Lincoln gave a speech to honor the Union losses during the fight.