.Putin phones cross-border strike in Kursk location a 'justification' The Washington PostRussia claims Ukrainian soldiers crossed right into its region as well as launched 'gigantic assault' CNNHow deep right into Russian area has Ukraine's surprise August incursion hit? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The Nyc TimesRussia: State of emergency in Kursk surrounded by incursion DW (English).