How this actually happens, where it's happened before, and who we think is behind it.

American backing is the single largest lifeline Ukraine has, and Russia is very unlikely to target the US directly — it's simply too powerful to provoke. That makes wavering American resolve, not military defeat, the likelier route to a Russian "win."

In 2026 the Trump administration eased sanctions on Russian oil exports — sanctions imposed in the first place because of the invasion — after the US and Israel's war with Iran disrupted the Strait of Hormuz and pushed oil prices above $100 a barrel. French President Macron publicly pushed back, arguing sanctions on Russia should stay in place.

Whatever the reasoning, the practical effect is the same: Ukraine cannot assume it has full, unwavering American backing — and that uncertainty alone changes the calculation for everyone else on this list.

Germany's AfD — a party Western officials have described as pro-Russian in its foreign policy leanings — has polled as one of Germany's most popular parties through 2026.

That matters because Germany has been one of Ukraine's most significant European backers, in both military and economic terms. A shift in Germany's governing coalition toward a party less committed to that support would remove a substantial pillar from under the current level of Western backing.

Neither this outcome nor France's is settled — but both represent a real possibility of cooling continental support for Ukraine over the next couple of years, exactly the kind of softening this argument depends on.

France has been one of the more vocal defenders of maintaining pressure on Russia — Macron publicly pushed back against the US's 2026 sanctions relief. But its own political future is less certain.

France's 2027 presidential election has consistently shown strong polling for Marine Le Pen's National Rally, a party with a similarly Russia-sympathetic foreign policy lean to Germany's AfD.

If Germany and France both drift this way around the same period, the continental backing Ukraine currently relies on could soften from two directions at once, not just one.

The UK is independent in foreign policy but isn't the largest military or economy in Europe — on its own, it was never going to be the decisive factor. But if American and continental backing softens, the UK's contribution becomes proportionally more significant almost by default.

That's exactly what makes UK infrastructure a more, not less, attractive target over time. A cable incident, timed alongside domestic disruption, is a far cheaper way to blunt a smaller ally's capacity to keep backing Ukraine than anything that risks a direct NATO response.

Russia is very unlikely to target the US directly, and unsettling Germany or France's domestic politics is a slower, less certain game than sabotage. The UK's cable-dependent, hard-to-defend infrastructure is the most efficient lever left — which is the argument this page has been building toward.