ANKARA, Turkey (AP) — Turkey’s defense minister says a joint Turkish-Russian observation center to monitor a cease-fire deal between Azerbaijan and Armenia in Nagorno-Karabakh will become operational on Saturday. Hulusi Akar said in a statement on Friday that a Turkish general and 38 personnel, would be on duty at the center which aims to monitor possible violations of the truce. He did not provide further information. Turkey and Russia agreed to form an observation center shortly after the cease-fire agreement, reached in November, ended six weeks of intense fighting between Azerbaijan and Armenia. Russia, which brokered the cease-fire, has separately deployed nearly 2,000 peacekeepers for at least five years to monitor the agreement.