Andrew Poppas at the Thermopylae Forum 2026: The Timeless Lesson of the Spartan Shield

Courage and trust are not individual qualities; they are built collectively. In the Spartan phalanx, each warrior’s safety depended on the responsibility of the man beside him. This was the message conveyed by retired U.S. Army General and former Commanding General of FORSCOM Andrew P. Poppas.

To illustrate this point, he drew on an example from ancient Sparta: a warrior could lose his helmet or breastplate without facing consequences. But if he lost his shield, the punishment was severe. This was because the shield did not only protect the warrior carrying it, but also the man to his left. A shield out of position could cost a fellow warrior his life.

The Spartans at Thermopylae, he emphasized, knew from the outset that they would not prevail. Yet they stood their ground, facing their fears and relying on one another. It was not the hope of victory that kept them there, but the trust they placed in one another.

Twenty-five centuries later, at the very same historic site, the lesson of the shield resonates just as clearly. Because then, as now, true strength is not measured in numbers, but in the trust we are willing to place in one another.