The Delphic oracle always gave a truthful answer, but sometimes the answer was also ambiguous. For example, King Croesus of Lydia asked whether he should fight King Cyrus of Persia or ask for terms of surrender, and the oracle replied: "If you fight, a great kingdom will fall." Greatly encouraged, Croesus, whose army outnumbered that of Cyrus two-to-one, went to war and met Cyrus at the Battle of Thymbra (545 B.C.). A great kingdom did indeed fall that day, but it was that of Croesus. And when the Spartans asked whether Apollo would permit them to expand their domain northward, the oracle replied that they would "dance in the fields of Tegea." This seemingly favorable answer gave the Spartans such confidence that they even took along chains for their captives. But they were defeated, and in their own chains, under whips, they went to work in the fields as farm workers. That is how the Spartans "danced" in the fields of Tegea.