.Putin calls cross-border assault in Kursk area a 'justification' The Washington PostRussia says Ukrainian soldiers intercrossed into its own territory as well as introduced 'enormous attack' CNNHow deep in to Russian territory possesses Ukraine's shock August incursion arrived at? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York TimesRussia: State of urgent in Kursk amid attack DW (English).