Ukraine’s president Volodymyr Zelenskyy has said his forces have seized more territory in Kursk as they advance deeper into the Russian region. In his nightly video address he said Ukrainian troops had advanced up to three kilometres and taken control of two more settlements, without naming them. Speaking to members of the foreign press in the capital Kyiv earlier on Sunday, Zelenskyy said that the incursion into Kursk was launched “preventively” in order to stop Russia from occupying the Ukrainian cities of Kharkiv and Sumy. “Russia prepared an invasion of the Kharkiv region and wanted to occ…