Two former Soviet republics went to war less than three years ago over a disputed region, and it appears they’re on the brink of another full-scale conflict, reports the AP. The dispute is between Azerbaijan and neighboring Armenia over the region known as Nagorno-Karabakh. As the BBC explains, the latter is located entirely within the borders of Azerbaijan, but it is populated mostly by ethnic Armenians. The two nations have fought previously over the region, first in the early 1990s when Armenia took control of it after the fall of the USSR, and again in 2020, when Azerbaijan reclaimed it. Part of the convoluted mix: Azerbaijan is backed by Turkey, while Armenia is a longtime ally of Russia, though relations have soured of late over the Ukraine war.