
Ukraine war latest: Ukraine strikes Russian S-400, S-300 systems in occupied Crimea, General Staff says
Key developments on June 10: * Ukraine hit Russian S-400, S-300 systems in occupied Crimea overnight, General Staff says * Ukraine refutes Kadyrov's claims about captured Sumy Oblast border village * Russia uses submarines to patrol Black Sea after naval losses, military says * Nearly 20,000 Wagner mercenaries died taking Bakhmut, media investigation