I would suspect that accurate numbers are hard to come by. However, the website DEATH BY GOVERNMENT is an exhaustive study of what it calls DEMOCIDE. I found this table hawaii.edu/powerkills/DBG.TAB3.1.GIF that might help answer your question. Note that there were several “crusades” that did not involve the Middle East.
This hawaii.edu/powerkills/DBG.TAB1.1.GIF is also an interesting table that might explain why there are wars in certain parts of the world.
As far as your friend’s comment is concerned, I would say that no Muslims would have been killed at all if they hadn’t conquered the Holy Land in the first place. Consider this:
There were 463 years between Mohammed’s death in 632 AD and the calling of a Crusade to free lands that had been Christian before the Muslim invaders arrived; but to hear what passes for common “knowledge” [from self-hating Christians at that!], the whole affair was solely the fault of power-hungry popes, greedy soldiers of fortune, and Christians who were persecuting harmless, pious Muslims minding their own business. Muslims are only too happy to help Christians perpetuate this mea maxima culpa attitude.
Stenhouse[1] lists only some of the events that took place in those 463 years, among them, 633 – Mesopotamia falls to Muslim invasion, followed by the entire Persian Empire
635 – Damascus falls
638 – Jerusalem capitulates
643 – Alexandria falls, ending 1,000 years of Hellenic civilization
648-49 – Cyprus falls
653 – Rhodes falls
673 – Constantinople attacked
698 – All of North Africa lost
711 – Spain invaded
717 – Muslims attack Constantinople again; repelled by Emperor Leo the Isaurian
721 – Saragossa falls, Muslims sights on southern France
720 – Narbonne falls.
732 – Bordeaux was stormed and its churches burnt down
732 – Charles Martel and his Frankish army defeat Muslims, turning back the Muslim tide
732 – Attacks on France continued
734 – Avignon captured by an Muslim force
743 – Lyons sacked
759 – Arabs driven out of Narbonne.
838 – Marseilles plundered
800 – Muslims incursions into Italy begin, Islands of Ponza and Ischia plundered
813 – Civitavecchia, the port of Rome sacked
826 – Crete falls to Muslim forces
827 – Muslim forces begin to attack Sicily.
837 – Naples repels a Muslim attack
838 – Marseilles taken
840 – Bari falls
842 – Messina captured and Strait of Messina controlled
846 – Muslims squadrons arrived at Ostia, at the Tiber’s mouth, sack Rome and St. Peter’s Basilica
846 – Taranto in Apulia conquered by Muslim forces
849 – Papal forces repel Muslim fleet at the mouth of the Tiber
853 – 871 – Italian coast from Bari down to Reggio Calabria controlled, Muslims terrorize Southern Italy.
859 – Muslims take control of all Messina
870 – Malta captured by the Muslims.
870 – Bari recaptured from the Muslims by Emperor Louis II
872 – Emperor Louis II defeats a Saracen fleet off Capua
872 – Muslim forces devastate Calabria
878 – Syracuse falls after a nine-month siege
879 – Pope John VIII forced to pay tribute of 25,000 mancuses (AUD$625,000) annually to the Muslims
880 – Byzantine Commanders gain victory over Saracen forces at Naples
881 – Muslims capture fortress near Anzio, plunder surrounding countryside with impunity for forty [40] years.
887 – Muslim armies take Hysela and Amasia, in Asia Minor.
889 – Toulon captured
902 – Muslim fleets sacked and destroyed Demetrias in Thessaly, Central Greece,
904 – Thessalonica falls to Muslim forces
915 – After three months of blockade, Christian forces victorious against Saracens holed-up in their fortresses north of Naples
921 – English pilgrims to Rome crushed to death under rocks rolled down on them by Saracens in the passes of the Alps
934 – Genoa attacked by Muslim forces
935 – Genoa taken
972 – Saracens finally driven from Faxineto
976 – Caliphs of Egypt send fresh Muslim expeditions into southern Italy. Initially the German Emperor Otho II , who had set up his headquarters in Rome, successfully defeated these Saracen forces
977 – Sergius, Archbishop of Damascus, expelled from his See by Muslims
982 – Emperor Otho’s forces ambushed and his army defeated
1003 – Muslims from Spain sack Antibes
1003-09 – Marauding bands of Saracens plunder Italian coast from Pisa to Rome from bases on Sardinia
1005 – Muslims from Spain sack Pisa
1009 – Caliph of Egypt orders destruction of the Holy Sepulchre in Jerusalem, the Tomb of Jesus
1010 – Saracens seize Cosenza in southern Italy.
1015 – All Sardinia falls
1016 – Muslims from Spain again sack Pisa
1017 – Fleets of Pisa and Genoa sail for Sardinia, find Saracens crucifying Christians, drive Saracen leader out. Saracens try to re-take Sardinia until 1050
1020 – Muslims from Spain sack Narbonne
1095 – The First Crusade.
While the pope has apologized for the Crusades, Muslims have never so much as acknowledged any responsibility. Why? The reason is that Islam is always right. Period.
For additional reading, see “The Real History of the Crusades” by Medieval historian Thomas F. Madden catholiceducation.org/articles/history/world/wh0055.html
Notes:
[1] “The Crusades In Context” by Dr Paul Stenhouse answering-islam.org.uk/Green/crusades-stenhouse.htm
[2] “JIHAD BEGOT THE CRUSADES”
Andrew Bostom americanthinker.com/articles.php?article_id=4467 [Two parts]
[3] “The Legacy of Jihad in Historical Palestine”
Andrew Bostom
americanthinker.com/articles.php?article_id=4999 [Two parts]