The invitation to Islam has long been a prelude to war if the invited party fails to return an RSVP in the affirmative:
Fight in the name of Allah and in the way of Allah. Fight against those who disbelieve in Allah. Make a holy war...When you meet your enemies who are polytheists, invite them to three courses of action. If they respond to any one of these, you also accept it and withhold yourself from doing them any harm. Invite them to (accept) Islam; if they respond to you, accept it from them and desist from fighting against them....If they refuse to accept Islam, demand from them the Jizya. If they agree to pay, accept it from them and hold off your hands. If they refuse to pay the tax, seek Allah's help and fight them. (Sahih Muslim 4294)
That hadith restates and elaborates upon Qur'an 9:29, which offers unbelievers conversion, subjugation or death:
Fight those who believe not in Allah nor the Last Day, nor hold that forbidden which hath been forbidden by Allah and His Messenger, nor acknowledge the religion of Truth, (even if they are) of the People of the Book, until they pay the Jizya with willing submission, and feel themselves subdued.
Choudary is not deluding himself that the Queen is likely to break into programming on the BBC and recite the shahada, the Islamic profession of faith. He's just following protocol. "Hate preacher tells Queen: Turn Muslim," by Simon Hughes for Sun, October 18:
Hate preacher Anjem Choudary sparked fury yesterday after calling for the Queen to become Muslim.
He demanded an Islamic revolution across Britain.
Choudary, 42, said Her Majesty - head of the Church of England - should convert to ensure her place in paradise.
He also wants to see senior members of the Government switching faiths. Choudary, a key henchman of rabble rousing cleric Omar Bakri, said: "We invite everyone from the Queen, to the ministers, to the Parliament, to the aristocracy, to the ordinary person in Britain to embrace Islam.
"Save yourself and your children in this life from misery and prepare them for a great destiny in the hereafter."
He made his call during an internet rant to promote a march in London later this month supporting Sharia law.
The ex-lawyer also made a scathing reference to the next general election, declaring: "Britain does not need a new leader, it needs a revolution - an Islamic revolution."
Labour MP Andrew Dismore said: "It'd be laughable if we didn't know that some take this man seriously." A Muslim group branded Choudary an "extremist nut".
That was MPACUK, the Muslim Public Affairs Committee in the U.K., seizing on a moment at which Choudary's "extremism" might make them look "moderate," though their own track record is none too impressive, either.