Drones buzz overhead, troops hunker underground in Ukraine's hellish Kill Zone

Ukrainian military medics treat a wounded Ukrainian soldier in the field hospital near the frontline in the southeastern reigion of Zaporizhzhia on Sept. 12. The vast majority of casualties take place in the so-called Kill Zone, a band about 10 to 20 miles wide on both sides of the frontline, which stretches more than 700 miles from north to south. Andriy Andriyenko/Ukrainian 65th Mechanized brigade/Ukrainian military via AP hide caption Andriy Andriyenko/Ukrainian 65th Mechanized brigade/Ukrainian military via AP KYIV, Ukraine — The frontline in the Russia-Ukraine war stretches the entire length of this country, from north to south. It has barely budged in four years and is sometimes compared to the static, deadlocked, trench warfare of World War I. Yet straddling this frontline is the Kill Zone, dominated by constantly evolving drone technology that's defining this conflict — and the future of warfare. "This Kill Zone is a belt of territory which is full of Russian drones, Russian mines, and also artillery. It's nonstop reconnaissance and surveillance," said Ukraine's Sr. Lt. Taras Myshak, the spokesman for Ukraine's 59th Separate Assault Brigade. He spoke with NPR on Zoom, just ...