Jünger's and Heidegger's correspondence is of enormous historical interest, revealing how both men came to understand their cultural roles in post-war Europe. It is valuable as well for showing the emergence of themes pervasive in Heidegger's post-war thought: his cultural and political pessimism and his concern with the problem of global technology. The correspondence also reveals the evolution of a philosophical friendship between two writers central to twentieth century European thought, and the mutual influence that friendship worked on their writing.