The US government appears close to sending a long-range multiple-rocket system (MLRS) to Ukraine. Russia sees such deliveries of heavy weapons as a provocative escalation. President Volodymyr Zelensky and other Ukrainian officials have urged delivery of the MLRS to counter Russia's heavy bombardments in the eastern Donbas region. But President Joe Biden said the US would not send Ukraine rocket systems "that can strike into Russia". There are concerns that such action would risk drawing the US and its Nato allies into direct conflict with Moscow. Moscow has welcomed President Biden's decision not to send weapons to Ukraine that could...