The Foreign Ministry of Azerbaijan is denying reports that it has expressed official protest to the NATO leadership against the participation of Armenian officers in NATO military exercises in Baku, reported Arminfo agency referring to Echo Baku newspaper. It should be reminded that, as Trend agency reported yesterday, Foreign Minister of Azerbaijan Elmar Mamedyarov stated that official Baku had expressed protest to Brussels against participation of Armenian officers in Cooperative Best Effort -2004 NATO military exercises to be held in Azerbaijan September 13-26.