As a result, Colonel General Franz Rohr von Denta became the new 1st Army commander in February 1917. The army stayed in Romania for much of the year and took part in the continued fight against the Romanian forces, subordinated to Army Front Archduke Joseph, including the Third Battle of Oituz. The actions during the summer of 1917 near Oituz, spearheaded by the VIII Corps, resulted in the Austro-Hungarian 1st Army taking significant casualties and only advancing 2-6 kilometers. In February 1918 it was subordinated to Army Front Kövess. Austro-Hungarian casualties were extremely high on the Eastern Front, and the casualty-struck 1st Army had to be disbanded on 15 April 1918, as conclusion of the peace treaty with Romania was imminent.