Together with the Dragoons and Hussars, the Imperial and Royal Uhlans (German: k.u.k. Ulanen), made up the cavalry of the Austro-Hungarian Army from 1867 to 1918, both in the Common Army and in the Austrian Landwehr, where they were known as the Imperial-Royal Landwehr Uhlans (k.k. Landwehr-Ulanen).
The Austrian monarchy, weakened by losing the war against Prussia in 1866, effectively had to guarantee the autonomy of the Kingdom of Hungary in the so-called Compromise of 15 March 1867. As a result, the Hungarian half of the Empire immediately began to establish its own army, the Royal Hungarian Landwehr (Hungarian: Magyar Királyi Honvédség).
Following the signing of the Compromise, the Austrian half of the Empire also started to build an army, the Imperial-Royal Landwehr (German: k.k. Landwehr). The two new Landwehr forces thus existed alongside the Common Army (Gemeinsame Armee), the imperial army of the whole Empire. In effect this meant that Austria-Hungary had three separate armies at the same time.
The Common Army has 11 Uhlan regiments and the Austria Landwehr 6 regiments. By tradition the majority of Uhlans were recruited from the Kingdom of Galicia and Lodomeria. The regiments were also stationed there, with few exceptions.
Assigned as divisional cavalry:
1 and 2 Sqns: 11th Infantry Division
3 and 4 Sqns: 30th Infantry Division
5 and 6 Sqns: 43rd Landwehr Infantry Division
Nationalities: 65 % Ruthenians - 30 % Polish - 5 % various
Recruiting district: Lemberg
Garrison: Lemberg
Assigned as divisional cavalry:
1+2 Sqns: 26th Landwehr Infantry Division
3+4 Sqns: 29th Infantry Division
5+6. Sqns: 10th Infantry Division
Nationalities: 58 % Czechs - 42 % various
Recruiting district: Leitmeritz
Garrison: Hohenmauth
Assigned as divisional cavalry:
1+2 Sqns: 45th Landwehr Infantry Division
3+4 Sqns: 24th Infantry Division
5+6. Sqns: 2nd Infantry Division
Nationalities: 69 % Poles - 26 % Ruthenians - 5 % various
Recruiting district: Przemysl
Garrison: Rzeszów
Assigned as divisional cavalry:
1+2 Sqns: 5th Infantry Division
3+4 Sqns: 12th Infantry Division
5+6. Sqns: 46th Landwehr Infantry Division
Nationalities: 85 % Poles - 15 % various
Recruiting district: Krakau
Garrison: Olmütz
Assigned as divisional cavalry:
1+2 Sqns: 4th Infantry Division
3+4 Sqns: 25th Infantry Division
5+6. Sqns: 13th Landwehr Infantry Division
Nationalities: 97 % Germans - 3 % various
Recruiting district: Vienna
Garrison: Stockerau
Assigned as divisional cavalry:
1+2 Sqns: 3rd Infantry Division
3+4 Sqns: 8th Infantry Division
5+6. Sqns: 44th Landwehr Infantry Division
Nationalities: 60 % Germans - 39 % Czechs - 1 % various
Recruiting district: Prague
Garrison: Wels