The Ostrogozhsk -- Rossosh Offensive began on 12 January .
The Ostrogozhsk -- Rossosh Offensive destroyed large parts of the Second Hungarian Army and the remnants of Eighth Italian Army at the Don south - east of Voronezh .
The Ostrogozhsk -- Rossosh Offensive began on 12 January and destroyed large parts of the Second Hungarian Army and the remnants of Eighth Italian Army at the Don south - east of Voronezh .