and the Italians... well... "helped" just like the Romanians in giving way for the 6th Armee to be surrounded.
They couldn´t do shit about it. Read "Stalingrad" by Antony Beevor. The Romanians had two obsolete AT guns to cover a front of dozens of kilometers when the Russians attacked with dozens of tanks and hundreds of men. Just like the rest of the German Army, they were abandoned completely by Hitler´s insanity about imaginary reinforcements.
As for the Spaniards, would there be a distinguishing between the Blue Division and the Falangists who made up the Blue Legion?