Deep beneath Charing Cross, in a disused Jubilee line terminus that hasn't seen a train since the 1990s, a secret NATO bunker has been hosting war games this week. Dozens of British soldiers are simulating the defense of Estonia against a Russian invasion in 2030, all while oblivious commuters and tourists clatter overhead. The scenario, set six years hence, is chosen because that's when military analysts expect a remilitarized Russia could be ready for round two in Europe, assuming the Ukraine war ends first.

Lt Gen Mike Elviss, commander of the Allied Rapid Reaction Corps, explained via video briefing that the exercise aims to show Moscow that NATO is operationally ready to defend its Baltic members - Donald Trump's bluster notwithstanding. But the real audience is a mile down the road in Westminster, where the Ministry of Defence has been locked in a funding battle with the Treasury. Remodeling the British army will cost billions, particularly on drones. The military is currently 80-90% short of the drones it needs for reconnaissance, air defense, and attack. If a full-scale war broke out tomorrow, the UK would run out of drones in less than a week, launching only a few hundred a day. Fixing that requires £50 million a year for simple one-way attack drones (the kind Ukraine has made famous) and £500 million a year for fancier models like armed driverless vehicles.

The exercise, dubbed Arrcade Strike, is meant to showcase the strategic reserve corps that could exist by 2030. The underground hall, crammed with chairs, computers, and screens spilling onto a platform, can house 500 people and transmit 10 terabytes of data daily - equivalent to three months of Netflix. Journalists were treated to virtual reality headsets from Anduril (in which US Vice President JD Vance is an investor), displaying a glossy 3D battle plan where the first waves of drones are lost but Russian positions are quickly eliminated. The operation is explicit: NATO would use thousands of drones to lead a counterattack, revealing and destroying enemy air defense, positions, and headquarters all the way to St. Petersburg. Subtlety is not the goal; as Elviss noted, the adversary is watching.

The exercise also visualizes Project Asgard, a digital communication system using AI (specifically Hivemind from Shield AI) to link any surveillance node to any weapon, speeding up decision-making from 72 hours to two hours. A virtual target is identified, and a new deep strike unit can hit targets 90 miles away with M270 artillery - meaning it could bomb Leicester if the rocket launcher were in Charing Cross. Three bombing options appear in a dropdown menu, chosen with AI help, and a red flashing fire button awaits. NATO's military chief, Gen Alexus Grynkewich, an American, applauded British efforts to transform into an AI-fuelled command post. Whether the AI made any mistakes during the exercise remains a mystery, but this is a demonstration, not actual warfare.

This is war in 2026 as well as 2030: high-speed, hi-tech death dealt from the safety of deep underground. Meanwhile, over at the Ministry of Defence, hints suggest several billion more will be found next month to increase the defence budget and close an £18bn funding gap - beginning to pay for the British army of the near future.