> Furthermore, the US fought itself to free millions of slaves in it's own Civil War.
Neither side of the Civil War fought to free slaves. One side fought to separate itself to prevent the distant future threat of that happening, the other side fought to preserve the Union (those on that aide interested in abolition had previously decided to defer it to preserve the Union.)
Secession and the rebellion ended up backfiring and also enabling abolition sooner than it otherwise would have happened, but that wasn’t what the war was fought for in the same way as WWII wasn’t fought to establish the UN.
Neither side of the Civil War fought to free slaves. One side fought to separate itself to prevent the distant future threat of that happening, the other side fought to preserve the Union (those on that aide interested in abolition had previously decided to defer it to preserve the Union.)
Secession and the rebellion ended up backfiring and also enabling abolition sooner than it otherwise would have happened, but that wasn’t what the war was fought for in the same way as WWII wasn’t fought to establish the UN.