At Ukraine's zero line, even tiny movements can be "a question of life and death," so soldiers need to wait long stretches for the right conditions.
Ukraine's drone-saturated "zero line" is so dangerous that troops may have to wait days for a safe chance to move just a few hundred meters, a Ukrainian soldier told Business Insider.
The soldier, who uses the call sign Yankee, said that he has exper... [3869 chars]