.Putin phones cross-border strike in Kursk location a 'justification' The Washington PostRussia states Ukrainian soldiers crossed into its area as well as introduced 'large attack' CNNHow deep right into Russian area possesses Ukraine's unpleasant surprise August incursion reached? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The The Big Apple TimesRussia: Condition of urgent in Kursk among incursion DW (English).