MOSCOW — A simmering, decades-long conflict between Armenia and Azerbaijan over the enclave of Nagorno-Karabakh erupted in late September into the worst fighting the area had seen since a vicious ethnic war in the 1990s.
Skirmishes have been common for decades along the front lines of Nagorno-Karabakh, which is internationally recognized as a part of Azerbaijan but is home to ethnic Armenians.
After three failed cease-fires, a Russia-brokered peace deal signed on Nov. 9 ended the six-week war that killed thousands. The deal allowed Azerbaijan to keep significant territory it had captured and required Armenia to hand over other areas, but left the capital of the Nagorno-Karabakh region, Stepanakert, under Armenian control, protected by Russian peacekeepers. Armenians in one region designated to change hands, Kelbajar, burned their homes rather than allow Azerbaijanis to live in them.
Back in the 1990s, it was the Azerbaijanis who were forced to leave Kelbajar