Szilágyi, T. 2022. Introduction Possibilities of Increased Environment Protection Aspects in the Development Process of Armed Forces: Security, Environment Security and Research & Development Perspectives. Honvédségi Szemle – Hungarian Defence Review. 149, 1-2. (jan. 2022), 47–63. DOI:https://doi.org/10.35926/HDR.2021.1-2.4.