The late George Cawkwell said that Xenophon’s Hellenica is for conoisseurs who can spot what he refuses to talk about or misrepresents. The whole year that he left out of his history may have been an accident, but he had strong ideas of what should and should not be talked about. Arrian’s Anabasis has some of the same quirks. Lets have a look at how he describes Alexander the Great’s march across Anatolia.
(Alexander cut the Gordian Knot). Next day he started for Ancyra in Galatia, where he was met by a delegation of Paphlagonians, who expressed their wish to be on terms of friendship with him, offering the submission of their people, and begging him not to march their troops into his territory. Alexander in reply ordered them to take their orders from Calas the governor (satrapes) of Phrygia, and then proceeded to Cappadocia, where he received the submission of all territory bounded by the River Halys and also of a large tract to the west and north beyond it. Then, leaving Sabictas as governor (satraesp) of Cappadocia, he advanced to the Cilician Gates. When he reached the position where Cyrus had once encamped in his campaign with Xenophon, he found the Gates strongly held.Arrian, Anabasis, 2.4 tr. Aubrey de Selincourt (Greek text here)