Political factionalism refers to the division of a political body into distinct groups, or factions, often competing for power and influence. This phenomenon can lead to instability, conflict, and a lack of unity within a political system, particularly in times of crisis or war. In the context of the Peloponnesian War and its aftermath, factionalism played a critical role in shaping the political landscape of ancient Greece, affecting alliances and enmities between city-states.
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