Galerius
Diocletian came to Antioch, where the official version of events was made clear: Galerius was to take the blame. In Antioch, Diocletian forced Galerius to walk a mile in advance of his imperial cart while still clad in the purple robes of an emperor.p17p292/3 The message was clear: the loss at Carrhae was not due to the failings of the empire's soldiers, but due to the failings of their commander, and Galerius' failures would not be accepted.