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

For Ukrainian soldiers, getting to the "zero line" requires moving through highly dangerous areas saturated with Russian drones and coordinating with their own nearby forces. ANATOLII STEPANOV/AFP via Getty Images Some Ukrainian soldiers work at the "zero line," the part of the front line nearest to opposing Russian forces. Getting there is dangerous and requires coordinating every step, a sergeant said. Soldiers must move cautiously through the "kill zone" and ensure their own side doesn't mistakenly attack them. Getting to Ukraine's deadly "zero line" to fight is so difficult and dangerous that every step requires careful planning and coordination. It often feels like "Mission Impossible," a Ukrainian sergeant told Business Insider. When moving toward the zero line, the forwardmost part of the front line where Ukrainian troops are closest to Russian forces, "every single step has to be coordinated.