German national detained in Russia and Ukrainian citizen arrested in Germany on espionage charges

The Russian Federal Security Service (FSB) announced on October 21, 2026, the arrest of a German citizen accused of being a mercenary fighting for Ukraine. According to the FSB, the 50-year-old man, who arrived in Ukraine in November 2025, signed a three-year contract with the Ukrainian armed forces but later deserted due to non-payment of wages. The Russian authorities claim the suspect had prior military experience in Afghanistan (2004-2010), Somalia (2006-2008), Syria (2008-2010), and a previous stint in the Ukrainian military (2016-2018). The circumstances and location of his arrest in Russia remain undisclosed, though the FSB released a video showing him in custody.

Separately, on October 22, 2026, the German Federal Prosecutor's Office announced the arrest of a Ukrainian citizen in Brandenburg. He is accused of espionage for Russia, specifically for allegedly gathering and transmitting information regarding the production of armored vehicles, ammunition, and explosives. Both developments reflect the intensifying intelligence and security conflict between the nations involved in the ongoing regional war, with legal investigations proceeding in both Russia and Germany respectively.