MP, part II -- Possible travesties you had in mind?
a. Hiroshima & Nagasaki -- Yes, very grim, done because it would save an extimated 200,000 to 500,000 landwar lives and speed up recovery. Dubious logic, perhaps, but not done as an acto of defense of Allah or Christ; simply done to expeditiously end a war started by the Japanese militarists years before.
b. European expansion and conquest of the America's? -- Hmmm, perhaps, but most of the initial die-off of native Americans was accidental transmission of diesase. The trade off, European conquistadors brought back syphlis to the Old World. Again, not a religious war but a conquest based on economics first.
c. The Crusades? -- A poorly managed medieval response to continual attempts by the Arabs to conquer Europe and harrass and persecute European pilgrims to the Holy Land (Read about Eg. Caliph Hakim's terrible persecutions of pilgrims that led to the First Crusade). Despite the initial commission by the Pope, all of the subsequent Crusades were rather amateurish attempts to gain glory, fame and riches rather than Holy Wars.
d. Colonialism and slavery? -- Again, not done for religious purposes as much as for economic gain. In the slave trade, the Arabs served as the master slave dealers, and they still adhere to their right to have and trade in human slaves.
e. The 1910s Armenian Genocide? -- Oops, the Armenians didn't kill any Christians or Muslims. That doesn't belong here.
f. The Hundred Years War and other European internal Holy Wars? -- Yes, these were theologically inspired wars, akin to the Arabian Peninsula's Wars of Apostasy after Muhammad and Abu Bakr. How many died as a result of this conflict? Please tell me.