In 1868, the number of active-duty troops in the army was 255,000, and the total could be expanded to 800,000 upon mobilization.
The ethnic make-up of the enlisted ranks reflected the diversity of the empire the army served; in 1906, out of every 1000 enlisted men, there were 267 Germans, 223 Hungarians, 135 Czechs, 85 Poles, 81 Ukrainians, 67 Croats and Serbs, 64 Romanians, 38 Slovaks, 26 Slovenes, and 14 Italians.