Colonel Tanasije Dinić’s personality and contributions are principally associated with the era of the Second World War, during which he held a prominent role as a collaborator and served as one of Milan Nedić’s ministers. This article seeks to undertake a historiographical reconstruction of Colonel Dinić’s activities within the borders of the Kingdom of Yugoslavia leading up to the onset of the Second World War. The authors underscore three distinctive phases in Colonel Dinić’s life. The initial section of the study meticulously examines his wartime experiences, commencing from his enrollment in the Military Academy’s Lower School and extending to the early years subsequent to the establishment of the SHS Kingdom. The subsequent section of the article delves into Colonel Dinić’s significant contributions to the establishment, expansion, and management of an intelligence network with a specific focus on Albania and Bulgaria. The third section of the article extensively addresses Colonel Tanasije Dinić’s tenure as a member of the Yugoslav Radical Community (JRZ) and the National Assembly. The scholarly foundation of this section rests upon pertinent literature and archival sources, which have been systematically employed to craft the narrative presented in the paper.