Key developments on June 18: * Ukraine launches largest drone attack on Moscow since start of Russia's full-scale invasion, hits oil refinery * European Council explores opening communication channels with Kremlin * Kyiv denies Russian claim that Ukrainian drone struck bus carrying Belarusian children's football team * Belgium, Germany, Sweden, Netherlands announce new military aid, F-16s for Ukraine ahead of NATO defense ministers' meeting * Kyiv repatriates 522 bodies that Moscow claims

Key developments on June 16: * 'Just response to Russian strikes' – Ukraine strikes major oil refinery in Moscow, Zelensky confirms * Zelensky, Trump, Macron meet at G7 summit…

Ukraine launched its largest drone offensive on Moscow in two years on Thursday, according to Russian state-run news agency TASS, in an attack that damaged infrastructure, caused…