A nation must think before it acts.
In this second installment of *The First Draft of History*, analysts Rob Lee and Dmytro Putiata pick up where they left off to tackle one of the most defining features of the current war in Ukraine: the kill zone. Once just a couple kilometers deep, this lethal band of contested airspace and ground has expanded dramatically—now stretching 15, 20, or more kilometers along the front lines. Rob and Dmytro break down what the kill zone actually means in practice, how drones have transformed it, and why both Russia and Ukraine are scrambling to adapt to this rapidly evolving battlefield reality.