"It's one of the darkest places in the UK," Mr Nuttall said.

"There's an intent and there's a build up of the stocks" for a possible future attack on Nato's Baltic state members, he said."This is what the analysts are assessing - in 2029. So we have to be ready by 2029... If you ask me now, is this a guarantee that's not earlier than 2029? I would say no, it's not. So we must be able to fight tonight," he said.

Many have long feared an attack on a Nato state as it could trigger a larger war between Russia and the US, which is a key member of Nato. Under Article 5 of the Nato agreement, any attack on a member state would mean other members must come to its defence.Gen Breuer singled out the so-called Suwalki Gap, an area that borders Lithuania, Poland, Russia and Belarus, as one of the most vulnerable."The Baltic States are really exposed to the Russians, right? And once you are there, you really feel this... in the talks we are having over there," he said.

The Estonians, he said, had given the analogy of being close to a wildfire where they "feel the heat, see the flames and smell the smoke", while in Germany "you probably see a little bit of smoke over the horizon and not more".Gen Breuer said this showed the differing perspectives among European states of the threat of a possible Russian attack.

Russia's view of the Ukraine war was different from the West's, he said, where Moscow sees the war as more of a "continuum" in a larger conflict with Nato and is therefore "trying to find ways into our defence lines and it's testing it".

He cited recent attacks on undersea cables in the Baltic Sea, cyber attacks on European public transport, and unidentified drones spotted over German power stations and other infrastructure.The striking feature of this election has been the leading opposition candidate, Lee Jae-myung, campaigning in a bullet-proof vest.

At a recent rally, he was escorted to the podium by close protection officers, ready to shield him with their ballistic briefcases. He then addressed the crowd from behind bullet-proof glass, under the gaze of rooftop watchers.This is not South Korean politics as usual. But South Korea has not been itself lately.

It is still recovering from the martial law crisis last December, when the president, Yoon Suk Yeol, tried to orchestrate a military takeover.He failed, because of resistance from the public and politicians, and was impeached, triggering this snap election to choose his successor.