Writing in 'The River War', his account of the British retaking of Sudan, published in 1899, Churchill noted the threat to Western Civilization radical Islam poses:
Individual Moslems may show splendid qualities. Thousands become the brave and loyal soldiers of the Queen:... all know how to die: ...but the influence of the religion paralyzes the social development of those who follow it. ... No stronger retrograde force exists in the world.....
....Far from being moribund, Mohammedanism is a militant and proselytising faith..... It has already spread throughout Central Africa, raising fearless warriors at every step; and were it not that Christianity is sheltered in the strong arms of science—the science against which it had vainly struggled—the civilisation of modern Europe might fall, as fell the civilisation of ancient Rome.
Islam, Churchill wrote,.... “is as dangerous in a man as hydrophobia in a dog.”
..."How dreadful are the curses which Mohammedanism lays on its votaries! Besides the fanatical frenzy, which is as dangerous in a man as hydrophobia in a dog, there is this fearful fatalistic apathy.... The effects are apparent in many countries. Improvident habits, slovenly systems of agriculture, sluggish methods of commerce, and insecurity of property exist wherever the followers of the Prophet rule or live..... A degraded sensualism deprives this life of its grace and refinement;... the next of its dignity and sanctity....
Churchill compared Islam unfavorably to Christianity:
Indeed it is evident that Christianity, however degraded and distorted by cruelty and intolerance, must always exert a modifying influence on men’s passions, and protect them from the more violent forms of fanatical fever, as we are protected from smallpox by vaccination...... But the Mahommedan religion increases, instead of lessening, the fury of intolerance. It was originally propagated by the sword, and ever since, its votaries have been subject, above the people of all other creeds,... to this form of 'madness'.
In the same book, Churchill also offered this on Islam:
..."That religion, which above all others was founded and propagated by the sword—the tenets and principles of which are instinct with incentives to slaughter and which in three continents has produced fighting breeds of men—stimulates a wild and merciless fanaticism.".......
