which of the following do the battles of Antietam and Gettysburg have in common?
A) they convinced the British and French to support the confederate war effort
B) The Confederates won a victory on Norther soil
C) The union army successfully prevented a confederate invasion of Northern soil
D) they gave president Lincoln grounds to sign the emancipation proclamation
Antietam and Gettysburg were both major victories and turning points for the union against the confederate forces that were trying to advance into northern territory.
