Nagorno-Karabakh - an ethnically Armenian enclave inside Azerbaijan. Following years of tension and sporadic fighting, full scale war erupted in 1991 between Armenians and Azeris in and around Karabakh. In 1994 a cease-fire was signed. Armenians remain in control of Karabakh and territories surrounding the region, representing close to 20 percent of the territory of Azerbaijan. No settlement has been agreed upon and no peace-keeping forces deployed on the frontlines. Karabakh remains sovereign, but the political and military situation regularly flares up into skirmishes.