"British Tories seek to cut ties to the European Union. Scots want to leave Britain. Catalans vote to divorce from Spain, to which they have been wedded since the 15th century. Flemish talk of leaving Walloons behind in Belgium. Northern Europeans are weary of carrying their profligate southern brethren and muse about cutting Greece adrift and letting it float out into the Mediterranean."
...and the US has supported many of these "separatist" movements as part of a global divide and conquer.