The book is highly critical of Islam and the multiculturalism which the author sees as enabling its extremism, and makes the controversial case that moderate Christian churches should seek actively to convert Muslim believers.

"We do not spend our time trying to convert true believers" said Dr. Steven Novella of Hamden, the president and editor.

Few expect that the paper published last week will automatically convert true believers.

During his visit, he suggested that altering sexual behavior was the answer to Africa's AIDS crisis, and urged Catholics to reach out and convert believers in sorcery.

It is believed that Saint Peter of Rates was beheaded while converting believers of the Roman religion to the Christian faith.

And European missionaries, like William of Rubruck, also traveled to the Mongol court to convert believers to their cause, or went as papal envoys (sent on behalf of the pope) to correspond with Mongol rulers in an attempt to secure a Franco-Mongol alliance.

"These organizations promote fundamental human values, but in reality they attempt to convert believers to their religious movement."

A sustained campaign is being conducted with a view to converting Buddhist believers into atheists.

Portuguese rulers forcefully converted believers of other religion to Christianity.