1. Athens Was Not Destined to Lose
A persistent tradition, rooted partly in Thucydides' own framing, treats Athenian defeat as something close to inevitable, the natural result of overreach and democratic instability. Kagan resists this strongly. He argues that Athens possessed remarkable resources: a powerful fleet, a reserve treasury, a sophisticated commercial network, and walls that made direct assault on the city essentially impossible. At multiple moments during the long conflict, Athenian power was still substantial enough to negotiate from strength. Defeat came not from structural weakness but from accumulated decisions that squandered those advantages one by one.
Why it matters: This reframing shifts the entire moral weight of the war. If Athens could have survived and did not, then the question of responsibility becomes urgent, and the story becomes one about leadership and political culture rather than fate.