In 1914, he was involved in combat in the
Galician theatre and took command of the VII Corps and was involved in fighting in the
Carpathian Mountains for which he was awarded, among others, the
Austrian Order of Leopold and the Prussian
Iron Cross. After
Italy became involved in the war, he was transferred to the
Carinthian border and involved in fighting the
Isonzo army. August remained on the front until the
Ninth Battle of the Isonzo in 1916, a period in which once again he was highly decorated. Joseph August was highly popular among his troops, especially those of
Hungarian nationality. In November 1916, Joseph August was put in command of the
Heeresfront fighting against
Russian and
Romanian forces, and in 1917, he was awarded the
Military Order of Maria Theresa and the
Pour le Mérite. In January 1918 he was put in command of the
6th Army in the Southern theatre and that July took over the
South Tyrolean Army Group, which was the
10th and the
11th Armies. Finally, on 26 October 1918, he was sent to the
Balkans theatre to take command of the
Heeresgruppe Kövess, which had lost
Serbia,
Albania and
Montenegro. He was the last person to be appointed a
Feldmarschall (
Field Marshal) of the
Austro-Hungarian Army, on 24 October 1918 as an attempt by his cousin, Emperor
Charles I, to placate Hungarian nationalists. ==Regent of Hungary==