Abstract: The contents of the doctrines at the operational and tactical levels focus primarily on the ways in which the components of the types of armed forces are used and the for cooperation between them. Documents of a higher level (e.g. strategies) indicate a number of threats, including non-military ones, affecting the state directly or indirectly. The issue of using social potential in these documents is marginalised. Lessons from the Russian-Ukrainian war emphasise how important the role of common defence is for the defence of the country against aggression. Nowadays, however, common defence cannot be “limited” to military action alone. A potential opponent is not only its army, but also its society, economy, culture, etc. The research conducted and its results point to opportunities to increase the defence impact of the state through effective and full use of its actors, including the military.
Key words: war, art of war, common defence, security, governance