Civilian casualty ratio
Some 7 million combatants on both sides are estimated to have died during World War I, along with an estimated 10 million non-combatants, including 6.6 million civilians. The civilian casualty ratio in this estimate would be about 59%. Boris Urlanis notes a lack of data on civilian losses in the Ottoman Empire, but estimates 8.6 million military killed and dead and 6 million civilians killed and dead in the other warring countries. The civilian casualty ratio in this estimate would be about 42%. Most of the civilian fatalities were due to famine, typhus, or Spanish flu rather than combat action. The relatively low ratio of civilian casualties in this war is due to the fact that the front lines on the main battlefront, the Western Front, were static for most of the war, so that civilians were able to avoid the combat zones.
German strategic bombing during World War I
On 28 January 13 Gothas and two Giants set off, six of the Gothas turning back because of poor visibility. Over a hundred defensive sorties were flown, resulting in one Gotha being shot down after being attacked by two Sopwith Camels from the 40 Squadron RFC, flown by Second Lieutenants Charles Banks and George Hackwill, the first victory for night fighters against a heavier-than-air bomber over Britain; both pilots were awarded the DFC. On the ground, 67 people were killed and 166 injured: the casualties included 14 dead and 14 injured in stampedes, when people queuing for admission to shelters were alarmed by maroons set off as a warning that a raid was expected; another 11 were injured by shrapnel from anti-aircraft fire. Many of the other casualties were caused by a bomb, which fell on the Odhams printing works in Long Acre, which was being used as a shelter.