General Christopher Donahue, commander of U.S. Army Europe and Africa, said allies could seize Kaliningrad "in a timeframe that is unheard of."

The US-led NATO alliance must prepare for the possibility that Russia and China could launch wars in Europe and the Pacific simultaneously, with 2027 being a potential flashpoint year, a top military officer said.

NATO members that border Russia are buying US-made HIMARS. One defense minister told BI that the war shows deep strike abilities are needed.

"Putin's criminal war is getting closer to our borders," Polish Foreign Minister Radosław Sikorski said on Wednesday.

In a keynote speech in London last month, the NATO Secretary General Mark Rutte repeated a warning he has made in public at least three times this year: the western alliance is severely lagging behind Moscow on ammunition production.

Russia launched four missiles and 136 drones into Ukraine overnight into Monday morning, according to Ukraine's air force.

Flight data showed how American and British reconnaissance aircraft flew from England toward Russia on Monday.

Ukraine war has become the most drone-intensive conflict yet – and Ukrainian commanders believe they are the only thing keeping Russian forces at bay, writes