Western Armenia , also referred to as Byzantine Armenia , later Turkish Armenia , or Ottoman Armenia is a term coined following the division of Greater Armenia between Byzantine Empire ( Western Armenia ) and Persia ( Eastern Armenia ) in 387 AD .
Western Armenia ( Armenian : Արևմտյան Հայաստան ) , also referred to as Byzantine Armenia , later Turkish Armenia , or Ottoman Armenia is a term coined following the division of Greater Armenia between Byzantine Empire ( Western Armenia ) and Persia ( Eastern Armenia ) in 387 AC .