The officer, with ties to the far-right AfD party, said he provided information to a Russian intelligence service out of fear of a nuclear escalation in Moscow’s war in Ukraine.

A member of Germany’s Bundeswehr went on trial in the western city of Düsseldorf on Monday, charged with espionage activities on behalf of Russia and leaking state secrets.

At the start of the trial, the defendant admitted that he had spied for Russia. He said his actions were driven by a fear of a nuclear escalation amid Russia’s war in Ukraine.

The officer was arrested on August 9 last year and the charges against him were made public on March 19.