Key developments on Aug. 23: Ukraine withdraws from positions near Pokrovsk to avoid Russian encirclement, ISW saysUkraine confirms sinking of Russian ferry in Kerch StraitU.S. targets around 400 individuals, entities in Russia, third countries in new sanctions packageNorway to finance production of NATO-standard artillery shells in UkraineBiden announces new aid package for Kyiv ahead of Ukraine’s Independence DayLatvia prepares largest batch of drones yet for UkraineU.S. President Joe Biden held a call with his Ukrainian counterpart Volodymyr Zelensky on Aug. 23 and announced a new aid packa…