I. Starting Expectations
The statement is straightforward enough but there is one problem: the phrase, “believing that it would be a great war.” There are many ways to say “believing” or “expecting” in Greek, but Thucydides chose a word for hoping—elpisas. It’s a surprising choice, especially since hope—elpis—in Thucydides is often delusionary. Something almost always goes wrong with hopes.
II. Plataea
So the attack that starts the war comes not from Sparta or Athens, but involves “allies on either side”—Plataeans, who Thucydides now tells his readers, were allies of Athens, and Thebans whom he will shortly explain were allies of Sparta. Shortly, but still not yet.
In Greek, the words rendered as “foreseeing,” “surprise” and “posted beforehand” all begin with the prefix pro-, “in advance of.” Thucydides has taken out his verbal machine gun—it goes pro– pro– pro. This stylistic feature is a forceful reminder of the difference between the Thebans’ expectations and the Plataeans’. The Thebans know what was evident from book one—that war was coming. The sleepy Plataeans get taken by surprise.
III. Belligerents’ Surprise and Readers’ Surprise
Thucydides never makes explicit that the Justices’ decision is a perversion of justice. He doesn’t have to; the debate provides a perfect vehicle for his exploration of the theme of justice and its abuse, in a way that the Plataeans’ execution of their prisoners, done in the heat of the moment and apparently with little discussion, did not.
The sentence turns the narrative back to the part of the second book, where precise dating and the theme of allies and their responsibilities is introduced.
IV. The Statesman’s Dilemma
The theme of unpredictability in Thucydides’ history, however, is not confined to occurrences of this word. It is infused throughout the work. Rather than tracing it in these remarks I would like to extrapolate from it by asking this question: If, as we have suggested, wars—not least the Peloponnesian war—are extreme cases of a much more universal human experience, how is one to prepare oneself for the instability of the future, unexpected consequences, the likelihood of being blindsided?