Soldiers have to plan out every step just to reach Ukraine's deadly 'zero line.' A sergeant said it's like 'Mission Impossible.'

Ukrainian soldiers must plan every step with extreme caution to reach and operate near Ukraine's deadly "zero line," which is adjacent to Russian forces. Due to hostile drones and intense combat in the area known as a "kill zone," movement is highly dangerous, requiring meticulous coordination and protection from friendly-fire accidents. Getting to this perilous frontline position has been described as being like "Mission Impossible."