quarters, the XV Mountain, was formed from personnel of the headquarters of the Commander of German Troops in Croatia; General Lueters assumed command of the new corps with many of his old staff.
Other corps headquarters formed at the time or moved into the area included the III SS Corps, V SS Mountain Corps, and the LI and LXIX Corps. One higher headquarters, that of Second Panzer Army, arrived from the Soviet Union and established its headquarters at Kragujevac, its mission to control the large mobile force to be formed in this central Balkan area south of Belgrade and to act as a mobile reserve to counter any Allied landings in force.
A number of small-scale operations were carried out against both Partisans and Chetniks throughout Yugoslavia during this period. In contrast to large-scale operations, these had the advantage of making easier the security of preparations and the achieving of surprise, and succeeded in keeping the irregulars constantly on the move. However, they had the disadvantage of allowing individual Partisans and Chetniks to slip through repeated encirclements and escape into areas recently combed by other units or where the occupation troops were not so active at the moment.
With the Italian ally about to join the enemy, the Commander-in-Chief, Southeast, was faced with the problem of holding extensive and rebellious areas with inadequate forces, while securing a long and exposed sea flank against an enemy having overwhelming naval and air superiority. Taking advantage of the situation, Partisan units became active in the Sarajevo area; in Albania, troops of the 100th Light Division had to be committed against guerrillas who had seized control of the Tirana airfield and were effectively blocking the landing of much-needed German reinforcements by air.
