Крымский фронт
Mounting "Luftwaffe" air superiority began to tell as Kerch port came under heavy and sustained German air attack, constraining the buildup of Soviet armor and artillery. Mekhlis demanded that massed tank attacks be made against the unbroken German lines. Manstein received more reinforcements in the form of the 28th Light Infantry Division, which was equipped with the new, easily concealed, low-silhouette 2.8 cm sPzB 41 light anti-tank gun. One of its soldiers, "Obergefreiter" Emanuel Czernik, destroyed seven T-26s and one BT tank in one day with the weapon. Manstein estimated the Soviet attack strength as six to eight rifle divisions and 160 tanks. After three days of heavy losses, Kozlov called off his fourth and as it turned out, final offensive. He withdrew back to his February starting positions by 15 April. The Crimean Front was now heavily weighted toward its right flank – 51st Army – leaving the 44th Army on the left depleted and the 47th Army in reserve a ghost command.