By Guy Faulconbridge MOSCOW (Reuters) -Vladimir Putin is demanding that Ukraine give up all of the eastern Donbas region, renounce ambitions to join NATO, remain neutral and keep Western troops out of the country,

Last month was the deadliest since Putin launched his full-scale war on Ukraine three and a half years ago. In July alone, 286 civilians were killed and another 1,388, according to official data.

Reports of the Russian president's demands have emerged following the summit in Alaska - as Ukrainian President Volodymyr Zelenskyy prepares to fly to Washington DC to see Donald Trump for the next stage of talks.

Under the proposed Russian deal, Kyiv would fully withdraw from the eastern Donetsk and Luhansk regions in return for a Russian pledge to freeze the front lines in the southern regions of Kherson and Zaporizhzhia, the sources said.

Russian President Vladimir Putin continues to refuse a ceasefire deal as strikes intensify against Ukraine.

Republican lawmakers have been overwhelmingly complimentary of President Donald Trump meeting with Vladimir Putin and attempting to put the Russian leader in a room with Ukrainian President Volodymyr Zelensky.