Argyraspides
The Argyraspides (in Greek: Ἀργυράσπιδες "Silver Shields"), were a division of the Macedonian army of Alexander the Great, who were so called because they carried silver-plated shields. They were picked men, were commanded by Nicanor, the son of Parmenion, and were held in high honour by Alexander. They were hypaspists, having changed their name to the Argyraspides whilst in India under Alexander (Arr. Anab. 7.11.3). After the death of Alexander (323 BC) they followed Eumenes. They were veterans, and although most of them were over sixty, they were feared and revered due to their battle skills and experience.
At the Battle of Gabiene they settled with Antigonus when he managed to take possession of their baggage train (consisting of their families and the result of forty years of plunder). They obtained the return of their possessions, but in exchange delivered their General Eumenes to him (316 BC).
Antigonus, however, soon broke up the corps, finding it too turbulent to manage. He sent them to Sibyrtius, the Macedonian satrap of Arachosia, with the order to dispatch them by small groups of two or three to dangerous missions, so that their numbers would rapidly dwindle.