In the spring of 401 BC, Cyrus united all his forces into an army now including Xenophon's "Ten Thousand", and advanced from Sardis without announcing the object of his expedition. By dexterous management and large promises, he overcame the misgivings of the Greek troops over the length and danger of the war; a Spartan fleet of 35 triremes under the command of Pythagoras the Spartan sent to Cilicia opened the passes of the Amanus into Syria and conveyed to him a Spartan detachment of 700 men under Spartan General Cheirisophus. Cyrus the Younger had obtained the support of the Spartans after having asked them "to show themselves as good friend to him, as he had been to them during their war against Athens", in reference to the support he had given the Spartan in the Peloponnesian War against Athens a few years earlier.
In The sPrINg of 401 bc, CyruS uNiTed All his forceS intO an ARmy nOw inclUdInG Xenophon's "ten tHousAnd", anD advANceD from sArdis witHOut annOuNcing thE ObjECT of His eXpedITion. by DeXterouS manageMent ANd laRGE PromiSEs, he Overcame ThE mIsGIvInGS Of The GreEk tRoOPS over ThE lenGth And Danger of the war; a spartAn fleeT Of 35 triremeS under the cOmmand oF pytHaGOras The sPARtAn Sent to ciliciA opened thE PasSes of the amaNus into syriA aND conVeYed to him a sPartan detachmenT Of 700 men unDer spartaN geneRal cheiRiSophUS. cyRus the younger hAd obtaineD the SupPorT of THe Spartans aFtEr hAvInG askED tHem "To show THEmsELVeS as Good frieNd to hIM, as hE Had beeN to tHEm durinG tHeir War aGainst Athens", in refErencE tO tHe suPPOrt he had GiVEN the spArTAn in tHe PeloPonNEsIan war agAinST Athens a FeW yearS eaRliEr.