Are you completely, or only halfway out of your mind? Germany needs time? Just how old is that nation/organization/fiefdom/state/federation? If Germany has not yet deciphered its core cultural values it desires to project and instill in subsequent generations of its citizens at what time in the history of the earth does it intend to do so? Why ask the US for time? Or, behind this introspective self-exam, maybe you ought to ask the Muslim brotherhoods right there in Munich and Stuttgart for their input--they seem to be in the vanguard of all things European now.
Why don't you dig a slit trench from border to border and wave a white flag-- while you proceed to bury what little remains of your collective dignity (facing Mecca and that of your future of course)?
Depending on what measure you want to use, about 100, 60 or 15 years old. Prussian Wars, WWII or fall of the Berlin Wall.