The military forces of Austria-Hungary remained largely unified over the course of the war, in spite of their multi-ethnic nature and some expectations to the contrary. While
German support was undoubtedly critical to the success of various offensives (such as the
Gorlice–Tarnów offensive and the
Battle of Caporetto), the multi-ethnic armies of Austria-Hungary proved fully capable in a defensive role in all the theaters of the war in which they were engaged. The predominantly ethnic German commanders of the army generally favoured troops of German extraction, but ethnic Hungarian troops were also seen as being reliable and were widely used on the front lines, especially on the
Russian front and
Italian front. For the most part, troops from other ethnic groups within the empire were less likely to be placed in strategically critical positions and therefore had lower casualties. Over the course of
World War I there was never a documented offensive by purely ethnic Hungarian troops, but such troops did contribute positively to the outcome of various battles, as follows: • On 3–15 December 1914 during the
Battle of Limanowa, the "Russian steamroller" was held back, especially by the
hussars. Lieutenant-general
Josef Roth attacked the Russian 3rd army, and on the right wing, the 10th Budapest and 11th Debrecen
cavalry divisions engaged in a man-to-man fight and were decisive. On December 11, colonel Ottmár Muhr died in a heroic defense leading the Sopron 9th
cavalry regiment. Lieutenant-general Artur Arz, together with lieutenant-general Imre Hadfy, leading the 39th Kassa division, destroyed the 15th Russian division in Livno. • During the
Siege of Przemysl, which defense was commanded by general Hermann Kusmanek, the main defence line, consisting of Hungarian troops, guarded the fortress for five months from November 1915. The defenders were commanded by Árpád Tamásy, leading the 23rd Szeged division. After the depletion of ammunition and food reserves, Przemysl capitulated, leaving 120,000
prisoners of war. • On the
Isonzo front, Hungarian forces participated in all twelve battles. On the Doberdo plateau and near
Karst, the most serious battles were fought by Hungarians, who composed one third of the total armed forces. In particular, the 20th Nagyvárad and 17th Budapest common regiments distinguished themselves. On 15 June 1918, near the river
Piave, the 6th army commanded by Archduke József Ágost took over most part of mount
Montello and held it until the end of the war. Decisive fights were carried out by the 31st Budapest common regiment and the 11th Debrecen division. The troops raised in the
Kingdom of Hungary spent little time defending the actual territory of Hungary, with the exceptions of the
Brusilov Offensive in June 1916, and a few months later, when the
Romanian army invaded
Transylvania, both of which were repelled. A small number of troops from Austria-Hungary also fought in more distant theaters of war that are beyond the borders of Austria-Hungary, including the
Gallipoli campaign, and in the
Sinai Peninsula and
Palestine. == Military leaders ==