What are some key contributions made by modern Christian philosophers to contemporary philosophical discourse?

Modern Christian philosophers have made significant contributions to contemporary philosophical discourse by engaging in debates on topics such as ethics, metaphysics, epistemology, and the philosophy of religion. They have offered unique perspectives on issues such as the nature of morality, the existence of God, and the relationship between faith and reason. Some key figures in this field include Alvin Plantinga, William Lane Craig, and Elizabeth Anscombe.