original_query: What is the role of warriors in a just society according to the text?
query: What is the role of warriors in Plato's ideal city?
answer: In Plato's ideal city, warriors, also called auxiliaries, are a class dedicated to defending the city. They are carefully educated and trained from a young age, emphasizing physical fitness and discipline.  Their role is to protect the city from external threats and maintain internal order under the guidance of philosopher-kings.