The sun burned like fire that day. Sergeant Eva Rostova, an Army medic, sat cleaning her rifle — calm, steady, haunted. Then the radio screamed: “VBIED at Checkpoint Four! Multiple casualties!” She didn’t hesitate. She grabbed her aid bag and ran straight into the smoke. The checkpoint was gone — flames, twisted metal, and the wounded crying out for help. While others ducked for cover, Rostova ran into open fire, kneeling beside a bleeding lieutenant. Bullets cracked the dirt around her boots, b