US President Joe Biden has authorized up to $400M in additional military supplies. This new package includes precision-guided shells and multiple rocket launchers, which will be taken from Pentagon stockpiles and shipped to Ukraine. A US government official said most of the supplies will be more of what the Pentagon has already provided to Ukraine, such as counter-battery radar systems, tactical vehicles, and demolition munitions. But in a first, the president has also decided to offer precision-guided shells for the M777 155-millimeter howitzers already being used by Ukrainian troops and four highly mobile artillery rocket systems (HIMARS), the official said.