Zelensky’s airspace warning could reshape war costs and global flights

Ukraine’s Zelensky warned that Russian airspace is “effectively closed” as Kyiv steps up drone strikes, a move analysts say could raise the costs of Moscow’s war and push negotiations, while unsettling Europe’s aviation network. Putin denounced the remarks as state terrorism, and experts note the tactic mixes military pressure with economic aims, even as some airlines continue to use routes through Russian airspace, raising European security anxieties about civilian flight safety and future air travel.