It is said that Albert Pike wrote the following letter to Giuseppe Mazzini in 1871 regarding a conspiracy involving three world wars that were planned in an attempt to take over the world.

The Pike letter to Giuseppe Mazzini was on display in the British Museum Library in London until 1977. Many have claimed to have seen it there. But the British Library in London denies the letter exists.

• Giuseppe Mazzini was an Italian revolutionary leader of the mid 1800s as well as the
  Director of the Illuminati
  
• Albert Pike (historical Masonic figure) was a 33rd degree Freemason, Occultist, Grand
  Master and creator of the Southern Jurisdiction of the Masonic Scottish Rite Order
  Following are apparently extracts from the letter, showing how Three World Wars have been
  planned for many generations.
  
  “The First World War must be brought about in order to permit the Illuminati to overthrow the
  power of the Czars in Russia and of making that country a fortress of atheistic Communism. The
  divergences caused by the “agentur” (agents) of the Illuminati between the British and Germanic
  Empires will be used to foment this war. At the end of the war, Communism will be built and used
  in order to destroy the other governments and in order to weaken the religions.”
  
  “The Second World War must be fomented by taking advantage of the differences between the
  Fascists and the political Zionists. This war must be brought about so that Nazism is destroyed and
  that the political Zionism be strong enough to institute a sovereign state of Israel in Palestine.
  During the Second World War, International Communism must become strong enough in order to
  balance Christendom, which would be then restrained and held in check until the time when we
  would need it for the final social cataclysm.”
  
  “The Third World War must be fomented by taking advantage of the differences caused by the
  “agentur” of the “Illuminati” between the political Zionists and the leaders of Islamic World. The
  war must be conducted in such a way that Islam (the Moslem Arabic World) and political Zionism
  (the State of Israel) mutually destroy each other.
  Meanwhile the other nations, once more divided on this issue will be constrained to fight to the
  point of complete physical, moral, spiritual and economical exhaustion… We shall unleash the
  Nihilists and the atheists, and we shall provoke a formidable social cataclysm which in all its horror
  will show clearly to the nations the effect of absolute atheism, origin of savagery and of the most
  bloody turmoil.
  Then everywhere, the citizens, obliged to defend themselves against the world minority of
  revolutionaries, will exterminate those destroyers of civilization, and the multitude, disillusioned
  with Christianity, whose deistic spirits will from that moment be without compass or direction,
  anxious for an ideal, but without knowing where to render its adoration, will receive the true light
  through the universal manifestation of the pure doctrine of Lucifer, brought finally out in the public
  view.
  This manifestation will result from the general reactionary movement which will follow the
  destruction of Christianity and atheism, both conquered and exterminated at the same time.”