At the same time, we know that our freedoms must be defended, sometimes by men and women in uniform but most poignantly by people refusing to succumb to fear.

CNN: Boston reminds us of best and worst of humanity

He continued to write novels, often based on his own wartime experiences throughout his life - perhaps most poignantly in his first book A Crowd is not Company, which took its lead from his experience as a German prisoner of war during World War II.

BBC: Author Robert Kee dies aged 93