Final answer:
Sparta won the war against Athens due to their training that focused on winning at any cost.
Step-by-step explanation:
Sparta won the war against Athens, in part, due to training that taught them to win at any cost. This statement is true. Spartan warriors were trained from a young age in the art of war, emphasizing discipline, tactics, and bravery. They were known for their intense military training, and their ability to endure hardships and fight relentlessly gave them an advantage over the Athenians.
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