“War is not so much about weapons as about money. » Thucydides The bloody war of brotherhood of ancient Greece, known as the "Peloponnesian War", which endures and continues today in different ways. The desire and power to control everything, forever, can be tragic, as history has shown. The Athenians and Spartans fought the greatest war in human history. The long and comprehensive war fought for three decades by alliances and leaders, with different policies and strategies on both sides politically and militarily, was the main determinant of the results. To understand the complexity of the Peloponnesian War, it is essential to identify the differences between these two city-states. The differences between Athena and Sparta concerned the political, military and cultural system. The Athenians were a limited democracy, while the Spartans were a more centralized oligarchy. The Spartans focused on expanding their power and taking control of other vital territories through military rebellions, with a rules-based strategy at first, while the Athenians were more war-oriented. economy, infrastructure and leadership, as well as the political system across the Dalian league to dominate in the long term. in the long term, thanks to an end-based strategy. Furthermore, Pericles was a prominent and good orator, but he first changed the character of Athenian strategy and was almost dominated by the supremacy of the Navy. "2.13 Pericles, a high-ranking Athenian general, essentially presents a defensive strategy, telling the people to return to the city, keeping a tight grip on their allies as to where they could get funds from." The initial Athenian strategy was to shape the battlefield (avoid decisive land operations), with a simple approach, avoid land battles with the Spartans and attack the Spartan alliances with the large naval fleet. The greatest change and shift in policy during the entire war was that of Sicily.