Schmitt's "Theory of the Partisan" originated in two lectures delivered during 1962, and has been seen as a rethinking of "The Concept of the Political". It addressed the transformation of war in the post-European age, analysing a specific and significant phenomenon that ushered in a new theory of war and enmity. It contains an implicit theory of the terrorist, which during the 21st century has resulted in yet another new theory of war and enmity. In the lectures, Schmitt directly tackles the issues surrounding "the problem of the Partisan" figure: the guerrilla or revolutionary who "fights irregularly" (p. 3). Both because of its scope, with extended discussions on historical figures like Napoleon Bonaparte, Vladimir Lenin and Mao Zedong, as well as the events marking the beginning of the 20th century, Schmitt's text has had a resurgence of popularity. Jacques Derrida, in his "Politics of Friendship" remarked: