If warfare kills more people, is that really progress? We measure success in warfare by how few casualties we sustain. With the less sophisticated weaponry of the 1890s, it was far harder to sustain massive casualties. The killing of innocents was also much harder to justify back in the 1890s. It took deliberate, sustained intent for American soldiers to murder dozens of Native Americans at Wounded Knee. With the advent of drones, we can explain away strikes that hit innocent herdsmen in terms of a technological miscalculation.