Kyiv's unilateral ceasefire took effect, but Ukraine reported Russian strikes killed at least 28 people. Russia demanded pause in hostilities for Victory Day on May 9, prompting Kremlin to scale back parade. Interior Minister reported 120 injuries, with 12 killed in Zaporizhzhia, 6 in Kramatorsk, 4 in Dnipro. Zelensky called attacks 'utter cynicism'. Rubio spoke with Lavrov on Tuesday about US-Russia relations and war. Ukraine retaliated with drone strikes killing 5 in Crimea. Short-term ceasefires failed to resolve war, no long-term diplomatic solution negotiated