Key developments on Dec. 22: Zelensky meets Polish foreign minister, hopes for new page in bilateral relationsNetherlands to prepare 18 F-16s for delivery to UkraineRussian attacks Kyiv, hits high-riseAir Force: Ukraine downs 3 Russian Su-34 supersonic aircraftBiden administration strengthens sanctions on Russia, targets financial backers of war effortThe Netherlands will start preparing the initial 18 F-16 jets for their delivery to Ukraine, President Volodymyr Zelensky announced on Dec. 22, following a call with Dutch Prime Minister Mark Rutte. The Netherlands and Denmark led the way in the …