"Long Walls" refers to a series of fortifications built in ancient Greece, particularly associated with the city of Athens. These walls connected the city to its port, Piraeus, ensuring safe passage for goods and people during times of conflict. The construction of the Long Walls was a strategic move to protect the city and maintain its economic stability. The Long Walls were approximately 4.5 miles long and consisted of two parallel walls, providing a secure route for Athenian citizens and military forces. Built in the 5th century BCE, they played a crucial role during the Peloponnesian War, allowing Athens to withstand sieges and maintain its naval power.