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What caused the Battle of Antietam to be the single bloodiest day in American history?

A. Confederate troops unexpectedly used guerilla tactics

B. Confederate troops outnumbered Union troops 2 to 1

C. troops marched forward in close formation against newer, more accurate weapons

User Skyel
by
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1 Answer

5 votes
A. Confederate troops unexpectedly used guerilla tactics
User Amit Kotlovski
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