A21 Role 1–4 care in Ukraine to prevent multidrug-resistant organism infections in large-scale combat operations: a biological warfare-inspired protocol for combat casualty care in Ukraine - Hailie Uren; B Hudson Berrey; Kostiantyn Gumeniuk; Volodymyr Kovalchuk; Olena Moshynets; Uliana Pidvalna; Dmytro Beshley; Mykola Ankin; Yvette Godwin; Douglas Davis; John Holcomb (BMJ Military Health, 2025)