US General Alexus Grynkewich, Nato’s Supreme Allied Commander Europe, will elaborate his 'theory of victory' over any potential attack at a security conference in Warsaw. (EPA Images pic) BRUSSELS: Nato's top military commander is expected to deliver a warning to Russia on Monday over the alliance's ability to counter any attack, as worries grow over the threat from Moscow.

Nato officials have said US General Alexus Grynkewich -- the alliance's Supreme Allied Commander Europe -- will elaborate his "theory of victory" over any potential attack at a security conference in Warsaw.

The move from the top military commander comes as Nato seeks to send a message to Moscow to halt what Western officials say is a "hybrid" campaign of sabotage and interference against Ukraine's backers in the war against Russia.