How did Sparta expand there land?

Sparta expanded its territory primarily through military conquest and the subjugation of neighboring regions. The most notable expansion occurred during the Messenian Wars, where Spartans conquered Messenia, transforming its inhabitants into helots, a subservient class. Additionally, Sparta established alliances and engaged in conflicts with other Greek city-states, further extending its influence and control over the Peloponnesian region. This aggressive expansionist policy was driven by the need for land to support its militaristic society.