bought land from their neighbors.
When the Spartans needed to expand they went and fought against other city-states. The Spartans had a great military, so this was very easy for them to do. Some information about the spartan military.... Boys started training at the age of 7. They slept on reeds and worked all day. At the age of 18, they went into the regular military. It is also important to know that the boys were taken away from their families at the age of 7. About the girls........ The girl Spartans were trained to javalin thow, and even wrestling. Unlike Athens, the girls did not stay home. They were very active, much like the boys.
They conquered more territory.
They depended on trade
The Spartans never needed walls. Their men were its own walls. The Spartans were fierce fighters. They were the most powerful infantry in the world before the Romans came.
conqured neighboring land conqured neighboring land
they reiled on farming and on conquering other people
they reiled on farming and on conquering other people
Sparta most likely believed that they needed a strong army so that they could not be overthrown.
Spartans needed to be able to keep helots at bay
They belived the world was theirs and they wanted to conquer it. (please improve my answer if needed.)
I think they conquered neighboring land. Hope that helps :)