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 Maidan Nezalezhnosti Kyiv weapon ammunition case bullet Maidan Nezalezhnosti Day of Mourning Kyiv Ukraine August 28 2025 August 29 2025 Russian attack victims bullet cases large-scale attack Kirill Chubotin Ukrinform NO USE RUSSIA NO USE BELARUS NurPhoto children victims commemoration massive attack Ukrainian capital casualties conflict remembrance mourning event Eastern Europe war impact civilian casualties international news photojournalism war reporting media restriction Ukrainian resilience public square memorial event.