evidence: The status of Nagorno-Karabakh (also called Artsakh), an enclave of 1,700 square miles (4,400 square km) in southwestern Azerbaijan populated primarily by ethnic Armenians, was from 1988 the source of bitter conflict between Armenia and Azerbaijan. By the mid-1990s Karabakh Armenian forces had occupied much of southwestern Azerbaijan, but, after a devastating war in 2020, they were compelled to withdraw from most of that area.