Russian forces continue limited offensive operations and infiltration attempts along the northern Sumy Oblast border to establish a buffer zone, with no confirmed territorial gains in the area during September 2026. Assessments from open sources indicate Russian positions remain several kilometers from Sumy city itself, despite periodic glide bomb strikes on nearby settlements and the city. Ukrainian forces have conducted counteractions and maintained defensive positions, while both sides report strikes on military assets in adjacent Russian border regions. These dynamics reflect the broader pattern of incremental Russian pressure in the northern axis without rapid advances toward major urban centers. Upcoming developments, including sustained artillery and drone activity or shifts in Ukrainian reinforcements, could influence control of border settlements and the feasibility of deeper incursions.