sentences:  His tenure at the head of the army saw increasing German control over Austro-Hungarian forces and reduced independence of action, but also a number of notable victories in the spring and summer of 1917, including the clearing of Galicia and the Bukovina, as well as the breakthrough at Flitsch Tolmein and the great victory at Caporetto later in the year.Promoted to the rank of "Generaloberst" on 26 February 1918, and also raised to the nobility early the same year, Arz was ultimately responsible for planning the invasion of Italy which was to take place during the summer of 1918, with Russia now knocked out of the war and a good number of experienced forces at his disposal.While planning was underway, both Conrad and Boroević demanded to lead the offensive, and neither Arz nor the AOK was able to make a decisive decision.