Defining Christian Zionism as theological support for Israel as a Zionist state, this article analyses four contradictions in such a theology. Firstly, although Christian Zionism insists it is purely theological, not political, this separation is impossible. Secondly, mainstream Zionist use of Christian Zionism to influence US foreign policy is misguided, since Christian Zionists wish to convert or annihilate all Jews. Thirdly, Christian Zionism is anti-Semitic, wishing to eliminate all non-converted Jews (and Arabs). Finally, since Christian Zionists read the Old and New Testaments in a 'literal' fashion, they resort to the violence of Armageddon to resolve their theological contradictions.