Sort of like Abraham Lincoln's emancipation proclamation.
The Emancipation Proclamation is widely believed to have saved lives and potentially shortened the Civil War by transforming it into a moral crusade against slavery. By enabling the enlistment of nearly 200,000 Black soldiers and sailors, the Proclamation significantly strengthened Union military forces, while simultaneously deterring European powers from supporting the Confederacy. The proclamation allowed for the recruitment of Black men into the Union Army and Navy, providing crucial reinforcements that hastened the Union victory and, by extension, brought an end to the fighting. By shifting the war's focus from merely preserving the Union to ending slavery, the proclamation made it politically difficult for anti-slavery nations like Britain and France to intervene on behalf of the Confederacy. As Union troops advanced, the proclamation gave them the authority to free enslaved people, disrupting the labor force that fueled the Confederate war effort. It added moral weight to the Union cause, which helped sustain Northern support for the war, even as it became more prolonged. While the proclamation was a military measure that didn't immediately free all enslaved people—as it applied only to areas still in rebellion—it laid the legal and moral framework for the abolition of slavery and accelerated the end of the conflict.
