sparten

Here you go sir. some of them at least

30,000,000–60,000,000 - Mongol Conquests (13th century)
33,000,000–36,000,000 - An Lushan Rebellion (756–763)
25,000,000–Manchu Conquest of Ming China (1616–1644)
17,000,000 - Timur Lenk's conquests (1370–1405)
3,000,000–8,000,000 - Thirty Years War (1618–1648)

250,000–800,000 - Sack of Baghdad by Hulagu Khan (1258)
50,000–350,000 - Rape of Nanking, China (1937)
60,000–100,000 - Sack of Jerusalem, First Crusade (1099)
70,000 - Sack of Merv by Genghis Khan (1221)
70,000 - St. Bartholomew's Day Massacre (France, 1572)
30,000–40,000 - massacred in Novgorod by Ivan the Terrible
25,000 - Sack of Magdeburg (Thirty Years War, Germany, 1631)
20,000 - Sack of Baghdad by Timur (1401)

As for Dieppe, I think you would have better sources than I.

Baghdad's been sacked, twice

Maybe you should show these figures to the anti-war lobby.

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"Any relations in a social order will endure if there is infused into them some of that spirit of human sympathy, which qualifies life for immortality." ~ George William Russell