Mykhailo Todurov, a prominent Ukrainian cardiac surgeon, talks about the tenfold responsibility that the operating team feels when they save the heart of a Ukrainian defender. His practice includes cases where the stress of war literally stops hearts: a man from Oleshky, who survived the occupation and flooding of the Kakhovka hydroelectric power station, suffered his fourth heart attack. The surgeon notes a critical problem: the military often do not have the opportunity to see a doctor, and some are fighting with congenital heart disease, risking their lives not only from enemy bullets. The main lesson of war for a doctor: you have to rely on yourself, be strong and professional, and not wait for someone to come and help. During the full-scale invasion, he had two children, whom he calls children of war.