Bernadete, Seth, "Plato's Laches: A Question of Definition," The Argument of the Action: Essays on Greek Poetry and Philosophy, ed. Ronna Burger and Michael Davis, Chicago: University of Chicago Press, 2000, 257-76.

Excerpt:

The Laches records the meeting between Socrates and the inglorious sons of Thucycides and Aristides, on the one hand, and, on the other, the now-famous generals Laches and Nicias. They meet sometime after 424 B.C., the battle of Delium, and before 418 B.C., the battle of Mantineia, where Laches lost his life (Thucydides 5.74.3). The meeting cannot be said to have been a complete success. No definition of courage is arrived at, and Socrates’ proposal, that they all go back to school, was not, it seems, followed up.

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