FSB reports arrest of German mercenary who deserted from Ukrainian Armed Forces

The FSB reported the arrest of a German mercenary who deserted from the Armed Forces of Ukraine. According to the agency, in November 2025, the suspect arrived in Ukraine, signed a three-year military contract with the Ukrainian Armed Forces, but deserted after not receiving the promised payment.

"Criminal proceedings are currently being considered against the detained person on charges of mercenary activities under Article 359 of the Russian Criminal Code," the FSB said.