Flavius Aetius was a brilliant general from the Later Roman Empire. Considering that he had a broken army of border troops and barbarian allies under his command, and that most of the Western Empire was already overrun by Vandals, Burgundians and Goths. He managed very well under terrible conditions (lack of resources, legions that were not at full strength and no areas for recruiting other men , fighting against numerous enemies with larger armies).
He was remembered as 'the Last True Roman' who saved Europe from the Huns. It's a shame that there isn't much books about him. The only thing I can find on amazon is a novel about him, where he has a love affair with Galla Placidia. Yikes.