Full Idea
Make war on the unbelievers until idolatry is no more and Allah's religion reigns supreme.
Gist of Idea
Make war on the unbelievers until Allah's religion reigns supreme
Source
Mohammed (The Koran [c.622], Ch.8)
Book Reference
Mohammed: 'The Koran', ed/tr. Dawood,N.J. [Penguin 1968], p.309
A Reaction
This should presumably be seen in context, as a war speech written during a conflict, like Churchill 'fighting them on the beaches', which does not apply to modern German tourists. However, one worries about how fundamentalists might read it.