Final answer:
The Emancipation Proclamation affected African Americans in the military by helping them overcome discrimination and officially allowing them to join the US military.
Step-by-step explanation:
The Emancipation Proclamation was a significant historical document that affected African Americans, particularly in the military. It did help African Americans overcome discrimination, as Frederick Douglass noted. The Proclamation also officially allowed African Americans to join the US military, marking a crucial step towards their inclusion.
Learn more about African Americans in the military