Ukraine-Russia war: The Joe Biden administration on Tuesday (May 31) announced that it will send Ukraine a small number of high-tech, medium-range rocket systems, a critical weapon that Ukrainian leaders have been begging for as they struggle to stall Russian progress in the Donbas region.Ukraine-Russia war: The Joe Biden administration on Tuesday (May 31) announced that it will send Ukraine a small number of high-tech, medium-range rocket systems, a critical weapon that Ukrainian leaders have been begging for as they struggle to stall Russian progress in the Donbas region.