For decades, gaining and maintaining air superiority has been a linchpin for the Western perception of military power. In contrast, due to geopolitical and technological factors, Russia has historically relied on air power as a supplementary tool for achieving victory on the ground (Grimshaw, 2017). Developments of the 21st century, especially within the technological realm, have, however, proven both of these doctrines to be incapable of reflecting modern battlefield challenges. The evolution of air defences, massive deployment of unmanned aerial vehicles (UAVs) and modernized electronic warfare (EW) tools are making the third domain more complex and restricted than ever. The ongoing Russia-Ukraine war has proven that uncontested dominance of the skies is neither guaranteed nor a sustainable task. Lethal air defence, a subdomain of air littoral consisting of thousands of drones and limited air sorties, have forced both sides to rethink the concept of air dominance and its role within the conflict. While the definition of air superiority remains clear, the necessity of achieving this objective as the sine qua non is diminishing as a new subdomain of the air littoral dominated by UAVs is emerging. Thus, rather than fully controlling and freely manoeuvring within the air domain, both sides pursue so-called ‘windows of opportunity’ (Gunzinger, 2024). This paper argues that the traditional view of air supremacy, central to Western military thinking, is no longer an adequate strategy against the peer or predominant opponent. The failure of the Russian Air Force (VVS) to establish air superiority on the first day of aggression was surprising and gave valuable lessons for military strategists. This conflict underlines the challenges in achieving total air dominance in the face of advanced air defence, UAV proliferation and EW capabilities. Thus, there is an essential need to rethink the air power concept, arguing for focusing on limited air superiority in times and places of choosing. In this context, Suppression and Destruction of Enemy Air Defences operations appear to be a crucial strategy. Finally, this paper underlines the implications for Western military thinking regarding air power theory, which is needed to operate within growingly contested airspace. In the face of the modern operational environment, emphasis on joint operations and interoperability in executing successful air campaigns is crucial.