British police arrested a senior US Army soldier near Gloucester under the National Security Act. A US official said he is based at Imjin Barracks, which hosts NATO's Allied Rapid Reaction Corps. The FBI said the case is of the utmost concern.
Why it matters: An alleged insider spy at a NATO base worries US and allied security officials.
UK counterterror police arrested a 41-year-old senior US Army soldier near Gloucester. FBI director Kash Patel confirmed. The soldier is based at a NATO headquarters unit and is being questioned in London.
Why it matters: It raises concern about Russian espionage inside Western alliances.