Final answer:
The emancipation of enslaved people harmed the Confederate war effort by leading many freed individuals to join the Union army and causing the loss of a significant enslaved labor force that had been supporting the Confederacy's army.
Step-by-step explanation:
The two ways that the emancipation of enslaved people harmed the Confederate war effort were that many of these freed individuals joined the Union army, and the Confederacy lost a significant labor force that had supported its army. For instance, once emancipated, many freedmen fought against the Confederacy, strengthening the Union’s military power. Similarly, the loss of an enslaved labor force weakened the Confederacy’s logistical and operational capacity as this labor force had been instrumental in various tasks such as construction, food production, and other logistics critical to the war effort.
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