Answer: I think the answer is D. The announcement of the Emancipation Proclamation. Hope this helps!
A. Joseph Stalin
This is correct for plato users also.
The best and most correct answer among the choices provided by your question is the second choice or letter B.
Joining in the armed forces <span>is the best example of American citizens defending our nation from an assault on liberty.</span>
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The biggest one was Operation Overlord (D Day)
