From the article

But what is the threat? In 1940 the danger of a German invasion of the UK was very real. But the chances of Russian tanks rolling up Whitehall are surely negligible.

“It’s not the tanks you need to worry about,” says historian Margaret MacMillan, author of War: How Conflict Shaped Us.

“It’s the cutting of cables on the ocean floor. It’s the hacking into systems on which so many things depend. The possibility for asymmetric war, for cyber war, is growing by leaps and bounds.”

Russia is winning the war they’ve been in with Western Europe for the last decade. Trump is in the White House, AfD just won the Saxony election. RN are on track to take the French presidency, Farage still gets 25% polling despite the rank corruption swirling around him.

Russia won’t send troops anywhere until the country in question is deeply compromised. It’s hybrid warfare and the battle started years ago, and we’re doing a shite job of defending ourselves (because we have quislings on the inside helping them).