C. S. Lewis as wartime apologist.

 The evidence suggests that he saw apologetics as a wartime duty, and his workload at Oxford was smaller when so many British men were fighting the Nazis. Lewis loved debate and believed in the rationality of his faith (and this didn't at all waver), and he continued his Presidency of the Oxford Socratic Club until he went to Cambridge. But he never envisioned himself as the go-to guy for Christian apologietics. Even John Beversluis, the arch-critic of Lewis's apologetics, recognized that the Anscombe exchange had nothing like the kind of impact that Humphrey Carpenter, George Sayer, and A. N. Wilson claimed that it did. It is weird that none of these authors so much as mention Lewis's revised chapter, which makes their accounts of the Anscombe incident rather like an account of the Kennedy assassination that omits the fact that Jack Ruby killed Oswald.

Miracles was published in 1947, but was written during wartime.