Callsign 'Zero' is a medical officer and a neurosurgeon. He is actively involved in evacuation missions, and provides first aid on the frontlines of the Special Military Operation within the army group 'West.' Some surgical procedures could last four hours or even longer. The work of a neurosurgeon is physically exhausting, but 'Zero' admits that sometimes it is even more challenging to determine the course of action to save the patient. "So, you need to recognize where and when, and most importantly, who needs your help in the first place," says 'Zero'. Watch the new episode of Here and Now to find out why he chose this profession, and what qualities are essential for working on the frontlines.