CSTO launches 'Unbreakable Brotherhood-2026' and 'Barrier-2026' exercises in Belarus

The Collective Security Treaty Organization (CSTO) has commenced two military exercises in Belarus: a command-and-staff exercise for peacekeeping forces in Vitebsk and a specialized exercise for radiological, chemical, and biological defense and medical support units in Staraya Doroga. This marks a continued pattern of CSTO military activity in Belarus, potentially signaling increased regional security cooperation amid ongoing tensions with NATO. The exercises are routine but may be interpreted as a show of force near the EU border.