 Complete the following phrase:  Together with several of the other dependent townships of Elis, it joined Spartan king Agis II, when he invaded the territories of Elis; and the Eleians were obliged to surrender their supremacy over Letrini by the peace which they concluded with the Spartans in 400 BCE. Later, the townsmen of Letrini formed part of the Spartan army that fought at the 