In theory NATO’s air defences amount to a formidable shield. In reality they are imperfect https://t.co/TozJTkN1ka ...

Europe’s air defences depend on America, which under Donald Trump is shifting its focus. Whether the continent is ready to step up is unclear https://t.co/ToZviFfWVx ...

“We believe that, above all, NATO should help Ukraine with its air defences,” write Kurt Volker, an American former ambassador to NATO, and Nico Lange, a former chief of staff to the German defence minister https://t.co/BV43UskAuH ...