.Putin phones cross-border attack in Kursk location a 'justification' The Washington PostRussia points out Ukrainian troops intercrossed in to its own region and also introduced 'substantial assault' CNNHow deep into Russian region has Ukraine's shock August attack hit? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York City TimesRussia: Condition of urgent in Kursk among incursion DW (English).