Gromit, The Churchill War Cabinet authorised allocation of £100,000 for acquisition of a mosque site in London. The intent was to enable Muslims in Britain to build a mosque and an Islamic Cultural Centre, so they could conduct affairs pertaining to their faith. The gift was also intended as a tribute to the thousands of Indian Muslim soldiers who died defending the British Empire.
https://en.wikipedia.org/wiki/London_Central_Mosque
That doesn’t mean that Churchill considered converting to Islam. Although he did say //Individual Moslems may show splendid qualities. Thousands become the brave and loyal soldiers of the Queen; all know how to die;//, he also said:
//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. The fact that in Mohammedan law every woman must belong to some man as his absolute property, either as a child, a wife, or a concubine, must delay the final extinction of slavery until the faith of Islam has ceased to be a great power among men.
Individual Muslims may show splendid qualities, but the influence of the religion paralyses 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 proselytizing 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 civilization of modern Europe might fall, as fell the civilization of ancient Rome. //
Pretty prophetic some might say.