<<Going back to Napoleon , the invasions seem mostly to be West vs East , but if one goes back a little further it looks more even , since Spain, France, Hungary , Austria , Poland , Greece, etc, etc, have all had important periods of conflict with Islam , including invasions.>>
Well, plane, in view of the relative scarcity of living survivors of Napoleonic times, my questions were actually aimed at 20th and 21st century events which people living today (or the parents and grandparents who raised and educated them) can remember. If you want to go back to the days of Suleiman the Great (the 16th century, according to Wikipedia,) I would think your God-fearing Protestant ancestors, God bless them, would have had a lot more to fear from the good Christians of the Spanish Inquisition than from Suleiman. At least that's how Good Queen Bess saw it, and who the hell are we to argue with her?
<<Has Islam changed since the days that all of Europe was in fear of Suleiman the Great?>>
I dunno. If you want to use as a yardstick the change in Christianity from the Spanish Inquisition to the Holocaust, I'd say it's probably changed about as much or as little as Christianity.