Ukrainian President Volodymyr Zelenskyy says he’s “sincerely thankful” to the U.S. for the new round of $800 million in military assistance. In his daily late-night address to the nation, Zelenskyy also said he’s thankful for Wednesday’s visit by the presidents of Poland, Estonia, Lithuania and Latvia who have helped Ukraine from the war’s first day. In his telephone conversation with U.S. President Joe Biden, Zelenskyy says they discussed the new weapons shipment, even tougher sanctions against Russia and efforts to bring to justice those Russian soldiers who committed war crimes in Ukraine. Zelenskyy also said work was continuing to clear tens of thousands of unexploded shells, mines and trip wires that were left behind in northern Ukraine by the retreating Russians.