On June 15, Russian forces made advancements in several regions of Ukraine, according to RBC-Ukraine. The data published by the Institute for the Study of War (ISW) confirmed the military activities of the Russian troops. The Ukrainian authorities claimed that these forces continued to move along the Siverskyi Donets River, but no changes were made to the agreed plan. The ISW information revealed that the Russian forces eventually moved towards Bereztove, advancing from Kupyansk-Svatove. On June 14, cartographic materials confirmed that the Russian troops were also advancing from Avdeyevka towards several other regions.