Tensions rise as Ukraine and Russia engage in cross-border conflicts.

Russian troops and security forces are fighting against an alleged cross-border raid that Moscow blamed on Ukrainian military saboteurs but which Kyiv portrayed as an uprising against the Kremlin by Russian partisans. Disinformation has been one of the weapons of the almost 15-month war. Russian territory and Russia-occupied areas of Ukraine have also been hit by drones and explosions that have derailed trains, though Kyiv officials brush off accusations of orchestrating them.