Day of Mourning in Kyiv for victims of Russian attack on August 28

Ukraine conflict Russian invasion Ukraine war war conflict Russia-Ukraine war mourning remembrance missile attack drone attack flag flagpole Maidan Nezalezhnosti half-mast Kyiv monument Ukraine flag half-mast monument founders of Kyiv Maidan Nezalezhnosti Day of Mourning commemorate killed massive attack August 28 Kyiv Ukraine August 29 2025 victims large-scale Russian attack increased 23 victims four children Kirill Chubotin Ukrinform NO USE RUSSIA NO USE BELARUS photo NurPhoto mourning remembrance tragedy conflict casualties war aggression Eastern Europe grief loss.