tion in the Salonika-Aegean area cost the Greek resistance forces 13 casualties and the Germans 12. Continuously engaged in operations, the occupational command for the Salonika-Aegean area became the Salonika Corps Group, and was raised to tactical corps status.
Friction again developed with the Bulgarians at this time. Contrary to the wishes of the Germans, to whom they were now subordinated tactically, the Bulgarians assigned fully a quarter of the troops of their II Corps to the task of securing the interior of Thrace, up to the mountain passes into Bulgaria. The Germans protested this weakening of the coastal garrisons, already reduced to a point where only 11 heavy batteries were left available for coast artillery support for an exposed sea front of almost 200 miles. In reply, the Bulgarians stated they considered it necessary to secure a route for reinforcements in the event of an Allied landing.
Despite the dissatisfaction of Army Group E, the Bulgarians maintained their position, widening the breach in relations. The irritation grew with some activities of Bulgarian units operating in German-occupied areas. Reluctant to leave after the completion of a mission, the Bulgarians frequently had to be ordered to return to their own zone. In turn, these units resented the German requirement that they turn over all weapons and booty taken in joint operations. Bulgarian minorities in German-occupied Greece also played a part in the dissension. Allowed to form home guard-type companies at the insistence of the Bulgarian II Corps, the minorities used these armed units to dominate their Greek neighbors, who in turn blamed the German authorities for placing them in such a position.
Operations in early April involved the clearing of a number of mountain passes in northern Greece, a preliminary movement to Operation MAIGEWITTER, a large-scale effort to destroy ELAS forces in that part of the army group area. The total guerrilla loss in the operation was 339 dead and 75 captured, with 200 suspects arrested.
Repeated Allied commando and air raids on the Greek islands made necessary the issuance of special instructions to the captains of the small vessels making the hazardous supply runs to isolated garrisons in the Aegean and Ionian Seas areas. Gun crews were to stand by at action stations when their vessels approached island anchorages, and supplies were to be unloaded only after the garrisons had been identified. Movement was to be at night where possible, with gun crews ready for sudden air attacks even in port. The excellent intelligence net of the guerrillas and Allies made it difficult for the Germans to maintain security of ship movements, however; this was well illustrated by the sinking of a ship carrying large stocks of small arms and machine gun ammunition to Crete and other island outposts.
