Serhiy Leshchenko, a permanent adviser of Ukrainian President Volodymyr Zelensky's chief of staff Andriy Yermak, warned that Russian attacks on Ukraine will increase and intensify over the next few days and weeks. Leshchenko expressed fear that Russia is trying to occupy as much as they can until the inauguration day of US President-elect Donald Trump. The Ukrainian Air Force said on Monday that its air defense downed 21 drones out of 43 launched by Russia in an overnight attack, targeting six regions across the country. US President Joe Biden announced nearly $6 billion in additional military and budget assistance for Ukraine, as Biden uses his final weeks in office to surge aid to Kyiv before Trump takes power.