What can be concluded fro the excerpt about president Lincoln main reasons for issuing the emancipation proclamation?

From the excerpt, it can be concluded that President Lincoln issued the Emancipation Proclamation primarily to weaken the Confederacy's war effort by freeing enslaved individuals in rebellious states. Additionally, it reflects his evolving stance on slavery, aligning the Union's war goals with the moral imperative of ending slavery. This strategic decision not only aimed to undermine the South's economy but also sought to bolster the Union's moral high ground in the conflict.