Despite his willingness to engage in underground activity and vehement opposition to the Nazis, Miłosz did not join the Polish Home Army. In later years, he explained that this was partly out of an instinct for self-preservation and partly because he saw its leadership as right-wing and dictatorial. He also did not participate in the planning or execution of the Warsaw Uprising. According to Irena Grudzińska-Gross, he saw the uprising as a "doomed military effort" and lacked the "patriotic elation" for it. He called the uprising "a blameworthy, lightheaded enterprise", but later criticized the Red Army for failing to support it when it had the opportunity to do so.