整理：俄乌冲突最新24小时局势跟踪（6月12日）

Conflict Situation - Russian Defense Ministry reports that mechanized infantry units have reached the western border of the Donetsk region and are advancing in the Dnipro region alongside a tank division [1] Other Developments - Ukraine claims to have attacked a key ammunition factory in Russia's Tambov region [3] - President Zelensky states that Kharkiv has been attacked, resulting in 3 deaths and 64 injuries [3] - Kremlin warns that Ukraine will lose more territory if it rejects Moscow's demands [3] - Russian envoy announces that US-Russia talks will take place in Moscow [3] - Kremlin comments that the EU's decision to lower the price cap on Russian oil is detrimental to global energy market stability [3] - Russian officials report the return of 1,212 bodies of Ukrainian soldiers to Kyiv, while Ukraine returns 27 bodies; exchange of severely injured prisoners will begin on Thursday [3] - Belgium rejects the proposal to seize frozen Russian assets [3] - President Putin emphasizes that the new national military armament plan should focus on the "nuclear triad" capabilities [3] - German Chancellor Merz states that an EU sanctions plan against Russia should be agreed upon by next week at the latest [3] - Russia expresses willingness to transport excess Iranian nuclear materials to facilitate nuclear negotiations [3] - Since the outbreak of the Russia-Ukraine conflict, Germany's imports from Russia have plummeted by 95% [3]