How did Jason Dunham demonstrate his physical courage?

Jason Dunham exhibited physical courage by shielding his platoon from a grenade, an act that involved great personal risk to save the lives of his fellow Marines. This selfless action exemplifies the highest form of bravery, as it involved placing himself directly in harm's way to protect others. Physical courage is not only about the willingness to confront danger but also about making decisions that prioritize the safety of others, often at a considerable cost to oneself. This act of throwing himself over the grenade to absorb the blast demonstrates profound self-sacrifice and valor, which are hallmarks of true courage in combat situations.