Referring to Russian President Putin’s threat that Moscow could strike the military installations of any country whose weapons were used against Russia, Tusk said on Friday: “None of us knows the end of this conflict, but we do know that it is currently taking on a very dramatic dimension.
“The events of the past several hours show that the threat of a global conflict is truly serious and real.”
The warning comes as Britain’s armed forces said they were ready to respond to any Russian aggression against Eastern Europe.
Deputy Chief of the Defence Staff General Sir Robert Magowan told the U.K. Parliament's Defence Committee, “If the British Army were asked to fight tonight, it would fight tonight.
“I don’t think anybody in this room should be under any illusion that if the Russians invaded Eastern Europe tonight, then we would meet them in that fight.”
Tensions between NATO allies and Russia took a turn for the worse on Thursday after Moscow said that a new U.S. airbase in Poland posed a “nuclear threat” and was a “possible target” for Russian missiles.
Earlier, Russia had launched a hypersonic medium-range ballistic missile attack on a Ukrainian military facility, sparking fears that it could have been an intercontinental ballistic missile.