ISLAMIC WARFARE IS BASED ON PAST GLORIES . . . AND . . .

Islam was indeed a dominant power for much of its history. Today it is hard to imagine Morocco defeating Spain, Tunisia conquering Italy and Turkey marching up to Vienna, but it did happen in the past. Muslims were the dominant power in the world for many centuries, and it is that "Golden Age" that today’s generation, whether Islamists or Nationalists, seek to re-capture.

from
Humiliation of Muslims and the coming Siege of Vienna


BUT

" . . . what are 'the lessons of history'? . . . . History is not a recipe book; past events are never replicated in the present in quite the same way. Historical events are infinitely variable and their interpretations are a constantly shifting process. There are no certainties to be found in the past.
Gerda Lerner

--from Why Moslems Cannot Learn Anything From History