St. Robert Bellarmine's treatises on the main controversies in Theology between Catholics and Protestants is unparalleled in its breadth and depth of scholarship and argumentation-4 centuries later. In the third installment of the Controversies, Bellarmine takes up the Controversies on Councils, the Church Militant, and the Marks of the Church so as to present the totality of the Catholic teaching on Ecclesiology and refute the arguments...