Russian forces continue limited offensive operations and infiltration missions in northern Sumy Oblast aimed at establishing a buffer zone along the international border, though assessed advances remain several kilometers from Sumy city with no confirmed consolidation of positions near the regional center. Ukrainian units have repelled multiple attacks, struck infiltrating groups, and refuted Russian Ministry of Defense claims of village seizures such as Ulanove and Marine. Ongoing Russian glide bomb, drone, and artillery strikes target border settlements and Sumy itself, producing civilian casualties but yielding minimal territorial gains amid Ukrainian counteractions and logistical constraints. These dynamics reflect a slow, contested northern axis where incremental Russian pressure has not translated into rapid progress toward larger objectives.