The paper aims to contribute to discussion on comprehensive defence development by looking into Resistance Operating Concept and Comprehensive Defence Handbook. These two documents are designed as a guide for the countries facing a formidable adversary to help them develop resistance (including violent) infrastructure before the potential invasion. After discussing the main tenets of the concept and suggesting a wider engagement with case studies and scientific literature on this and similar topics, the paper addresses the pitfalls and considerations of preparing such resistance in peacetime, focusing on five areas: C2, legitimacy, recruitment, potential problems in long-term and communication.