Russian forces have not achieved relatively rapid tactical successes to the west of Ocheretyne, Solovyovo, Berdychi, and Semenivka after Ukrainian forces withdrew from tactical positions in this area. This indicates that the Ukrainian Armed Forces retain the ability to slow Russia’s advance, according to the Institute for the Study of War (ISW). The next line of defense in this area is at a certain distance from the line that the occupiers have been attacking since the capture of Avdiivka in mid-February. Russian progress is likely to be rapid only if Ukrainian forces do not attempt to hold po…