Air defense downs 14 Russian drones overnight.

Ukraine war latest: Zelensky visits US military base in Germany

Key developments on Dec.

14: * Zelensky arrives in Germany, visits US military base * Explosions heard in Kyiv, Khmelnytskyi Oblast in Russian missile attack on Ukraine * European Council agrees to open accession talks with Ukraine, Moldova * Putin: Russia allocating £11 billion per year to 'in...