The Battle of Thymbra was the decisive battle in the war between Croesus of the Lydian Kingdom and Cyrus the Great of the Achaemenid Empire. Cyrus, having pursued Croesus into Lydia following the drawn Battle of Pteria, met the remains of Croesus' partly disbanded army in battle on the plain north of Sardis in December, 547 BC. Even though Croesus' army was reinforced with many new men, Cyrus utterly defeated it, despite being outnumbered more or less 2:1.