The number of Italian troops in Russia had grown to about 200,000. Although the troops fought well during the initial summer campaign, they lacked anti-tank weaponry suitable in winter conditions. During the German defeat at Stalingrad, the campaign in the Soviet Union turned heavily against the Axis powers. Alongside Romanian, Hungarian and German forces, the Italian army was severely mauled during Operation Saturn on the flanks of Stalingrad while trying to hold back the Soviet forces.