Sairus ya ci Mulkin Mediya a shekara ta 550 K.Z., wanda ya haifar da rikici da masarautar Lidiya da ke makwabtaka da ita.Yaƙin Thymbra shine ƙaƙƙarfan yaƙi a yaƙi tsakanin Croesus na Masarautar Lydia da Cyrus Babban Daular Achaemenid.Sairus, bayan ya bi Croesus zuwa Lydia bayan yakin Pteria, ya sadu da ragowar sojojin Croesus da aka wargaza a yaƙi a filin arewacin Sardis a watan Disamba 547 KZ.Sojojin Croesus sun kai kusan ninki biyu kuma an ƙarfafa su da sababbin mutane da yawa, amma Cyrus ya ci su sarai.Hakan ya kasance da muhimmanci, kuma bayan Siege na kwanaki 14 na Sardis, birnin da wataƙila sarkinsa sun faɗi, kuma Farisawa suka ci Lidiya .