A Ukrainian drone assault on 18 June 2026 forced a full, temporary suspension of operations at all four major Moscow airports—Sheremetyevo, Vnukovo, Domodedovo, and Zhukovsky—disrupting one of Europe’s busiest air hubs. Russian authorities intercepted approximately 180 drones, with several breaching defenses to strike a Moscow oil refinery in Kapotnya, igniting fires and damaging nearby residential and commercial structures. The aviation sector faces cascading cancellations and delays as operators reroute flights around the capital region. This incident underscores the growing operational vulnerability of major metropolitan airports to cross-border drone warfare, demanding enhanced air defense integration and contingency protocols for operators managing high-density traffic networks.