Leaked German military documents laid out a doomsday scenario where Russia wins in Ukraine then invades Europe

• Leaked German military documents outline a scenario where Russia goes to war with NATO.
• It envisages Russia winning in Ukraine then seeking to seize territory in the Baltics.

Leaked German military documents describe a chilling scenario where Russia wins in Ukraine and then goes to war with NATO.

The classified documents were obtained by Bild, a German tabloid. (Bild and Business Insider share a parent company, Axel Springer.)

The documents, produced by Germany's Defense Ministry, imagine a situation in which Russia launches a massive spring 2024 offensive to take advantage of waning Western support.

In this scenario, it defeats Ukraine.

The documents are not a prediction but part of worst-case-scenario planning, a common exercise within militaries. A German official called the scenario "extremely unlikely."

The German documents imagine Russia turning its sights on NATO members in Eastern Europe, with it seeking to destabilize its enemies through cyberattacks and inciting internal chaos in the Baltic states of Estonia, Lithuania, and Latvia.

They describe Russia staging a series of escalations, then moving troops and weapons closer to the Baltic states, via its ally Belarus and Kaliningrad, a small, detached region of Russia surrounded by NATO states and the Baltic Sea.

The end goal would be to move Russian troops into the Suwałki Gap, Bild reported, citing the documents.

The gap is a 62-mile stretch of land separating Kaliningrad and Belarus.

It has long been considered a weak spot in NATO's east. If occupied by Russia, it would cut the Baltic states off from other parts of Europe.

Under the scenario obtained by Bild, NATO would fight Russia to prevent it from occupying the gap. (NATO membership obliges states to come to each other's defense if attacked.)

It envisages the face-off coming to a head in early 2025, with Russia seeking to take advantage of the upheaval that could follow a new US administration taking office after the 2024 presidential election.

A German Defense Ministry spokesperson told Bild: "Considering different scenarios, even if they are extremely unlikely, is part of everyday military business, especially training."

The Institute for the Study of War, a US think tank, noted that such documents were ordinary in military planning. It said the timeline suggested was improbable.

But it added that without continued Western support in the region, Russia could indeed push as far as the borders of NATO countries.

Russian President Vladimir Putin and Kremlin officials have long menaced NATO over its support for Ukraine.

But Putin in December denied US President Joe Biden's claims Russia could go to war with NATO, describing them as "complete nonsense." European leaders and officials have long sounded the alarm about renewed Russian aggression against other parts of Europe if it wins in Ukraine.

Jacek Siewiera, Poland's security minister, said in December that an attack could come in as little as three years and would likely target NATO's eastern flank.