MOSCOW, Dec 25 (AFP) - Russia is ready to negotiate with all parties involved in the war in Ukraine but Kyiv and its Western backers have refused to engage in talks, President Vladimir Putin said in an interview aired on Sunday.

Russia's Feb. 24 invasion of Ukraine has triggered the most deadly European conflict since World War Two and the biggest confrontation between Moscow and the West since the 1962 Cuban Missile Crisis.

There is, thus far, little end in sight to the war.

The Kremlin says it will fight until all its aims are achieved while Kyiv says it will not rest until every Russian soldier is ejected from all of its territory.

"We are ready to negotiate with everyone involved about acceptable solutions, but that is up to them - we are not the ones refusing to negotiate, they are," Putin told Rossiya 1 state television.

An adviser to Ukrainian President Volodymyr Zelenskiy said Putin needed to return to reality and acknowledge it was Russia which did not want talks.

"Russia single-handedly attacked Ukraine and is killing citizens," the adviser, Mykhailo Podolyak, tweeted. "Russia doesn't want negotiations, but tries to avoid responsibility."