evidence: President Joe Biden announced Tuesday his administration would send advanced, longer-range rocket systems to Ukraine to combat Russian forces. Senior administration officials, speaking on the condition of anonymity, said Tuesday the U.S. would be sending HIMARS (High Mobility Rocket Systems) to Ukraine. The officials said in a call with reporters that Ukrainian officials assured the United States the rockets would only be used to repel Russian forces in Ukraine and not to attack Russian territory. [...] President Biden announced Wednesday $800 million more in military aid to "fend off Russia's assault."