"Ukraine's Advances and Russian Troop Degradation: Key Events on Day 574"

Ukraine is under investigation for a deadly explosion in Kostiantynivka, while Russia launched drone attacks on Lviv and an attack on Kupiansk. At the United Nations General Assembly, Ukrainian President Zelenskyy called for unity against Russia's aggression, while US President Biden urged leaders to defend Ukraine and Turkish President Erdogan pledged to intensify diplomatic efforts. Brazilian President Lula called for negotiations, and Russian President Putin plans to meet with China's Xi Jinping. US Defense Secretary Austin called for more air defense systems for Ukraine, and the UK promised additional artillery shells.