Ottoman military uniforms. Gendarmerie uniform from the period of Sultan Abdulhamid II. With the establishment of the Janissary Corps members of the army began to wear a uniform. Initially caps were focused on rather than dress, these allowed soldiers to be distinguished from the public in peacetime and from enemy in wartime. With the extension of the countries borders and increase of the number of troops as a result different caps and dress were introduced for each service and region.