History and temporality have in Nietzsche’s work an important place, where other fundamental categories are involved as well. His second Untimely Meditation has especial relevance in this framework, where Nietzsche warms against the historicism of those years. History in that text is presented as a regulator of action in favor of life, but in spite of that fact, history it is not only associated to memory, but also to forgetting. This paper aims to recover those notions in the light of Foucault’s thought. He shows in different writings his Nietzschean heritage in the elaboration of the war model and the construction of a genealogy of strategic discourses that respond to a will to knowledge.