noun

A military advance into the interior of a country (with reference to that of Cyrus the Younger into Asia in 401 BC, as narrated by Xenophon in his work Anabasis).

The great resources of military manpower remaining are reflected in accounts of the famous procession mounted by him at Daphne, prior to his anabasis to the ‘Upper Satrapies’, a major military campaign, in which he met his death.