U.S. Soldier Arrested in Britain in Russia Espionage Probe

British police arrested a 41-year-old U.S. Army soldier near Gloucester on November 10 on suspicion of offences under the National Security Act 2023 relating to Russia. The Metropolitan Police said the man remained in custody at a London police station and had not been named or charged as of November 11. The allegations have not been tested in court.

The arrest followed an investigation by Counter Terrorism Policing working with U.S. authorities, the U.S. military and the FBI. Police said the suspected offences fall under sections 1 and 3 of the act, concerning obtaining or disclosing protected information and assisting a foreign intelligence service. Officers searched two locations in Gloucestershire.

A senior NATO military official confirmed that the soldier was assigned to NATO’s Allied Rapid Reaction Corps. Officials familiar with the investigation told media that he was based at Imjin Barracks, the corps headquarters near Gloucester. The publicly reported police account does not identify what information investigators believe he sought or whether any material was obtained.

Officials familiar with the case told The Washington Post and The Globe and Mail that no sensitive...