arab armenia armenian language armenians army of islam azerbaijan azerbaijan democratic republic azerbaijani language azerbaijani people baghdad baku baku governorate bandar-e anzali battle of abaran battle of bitlis battle of erzinjan battle of karakilisa battle of sardarapat bergmann offensive british empire british india caucasus caucasus campaign central asia central powers centrocaspian dictatorship cossacks dagestan democratic republic of armenia democratic republic of georgia derbent desertion dominion of new zealand dunsterforce erzerum campaign german empire howitzer kermanshah lionel dunsterville march days mesopotamia military history of australia during world war i mirza kuchak khan mountainous republic of the northern caucasus nikolai baratov north staffordshire regiment novkhani ossetians ottoman army of islam ottoman empire persian campaign petrovsk qazvin royal warwickshire fusiliers russian language russians september days tbilisi trebizond campaign united kingdom united kingdom of great britain and ireland van van resistance warwick castle white movement