The Defence Editor at the Evening Standard Robert Fox has said that "we are in a very dangerous position" after the Polish Prime Minister said that Europe is in a "pre-war era" and "must be ready." Donald Tusk has said that there is a "real" threat of conflict between the West and Russia.
The former President of the European Council has warned that Ukraine must not be defeated by Russia for the good of the whole of Europe.
It comes as Ukraine's air force said that Russia fired four missiles into eastern Ukraine on Friday night, as well as 12 Shahed drones across the country.
Russia has launched an air strike campaign on Ukraine's energy infrastructure over the past week, causing significant damage in several regions.
Robert Fox agreed with the Polish PM's warning
GB News
Speaking on GB News Robert Fox said: "I think first of all retreat and defeat that is on the cards. We are facing that very possibility if the combination of things goes right for Russia.
"Whether that defeat is tactical, temporary or catastrophic. Either way, this is what Donald Tusk was saying. It is very, very bad news for Europe. The trouble is, with warning Europe about the real danger, which includes the area in which Britain sits.
LATEST FROM THE FRONTLINE IN UKRAINE:
"If you really warn too early, people will be put off. They say you're frightening the horses, and if you do it too late, it will be too late. And we're in a very, very dangerous position. And what Donald Tusk was saying is that the European allies, particularly through Nato and the EU, have not got their act together
"Ukraine is running out of ammunition. That's a simple point. On the one hand, we have the problem in the United States, where the arms supply is blocked in Congress.
Ukrainian PM Denys Shmyhal with Donald Tusk in WarsawGetty"Then we have the issue of whether Donald Trump will become president. But in Europe, our procurement systems are failing."
He added: "We've got to work out in the UK how we work with allies, how we're going to deal with reforming our own system in defence.
"It's a very big ask that will happen to the new government that comes in after the election."
Tusk said that in his part of Europe, war was no longer an abstract idea, warning that "literally any scenario is possible".
Polish PM Donald TuskGettyHe told a press conference alongside his Ukrainian counterpart Denys Shmyhal in Warsaw: "I know it sounds devastating, especially to people of the younger generation, but we have to mentally get used to the arrival of a new era. The pre-war era.
"I don't want to scare anyone, but war is no longer a concept from the past....It is real, in fact, it already started more than two years ago."
"We must be ready. Europe still has a long way to go."
He added: "Today we have to spend as much as we can to buy equipment and ammunition for Ukraine, because we are living in the most critical moment since the end of the Second World War...the next two years will decide everything.
"If we cannot support Ukraine with enough equipment and ammunition, if Ukraine loses, no one in Europe will be able to feel safe."