The Blank 1 invited more slaves to come over to the Union lines, many of whom joined the army, which eventually included about 180,000 former slaves and free black men. What is blank 1

Emancipation Proclamation.

Explanation:

The emancipation proclamation was a proclamation signed by President Abraham Lincoln on January 1, 1863. According to this proclamation, President Lincoln promised that the slaves in the rebellious state would be set free. The proclamation also enabled the black slaves to be accepted into the army.

Therefore, after the emancipation proclamation, black slaves entered the army. The count reached approximately 180,000 former slaves and free black men in the army.

Therefore, the emancipation proclamation is the correct answer.

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danielu suge pula

explanation: