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 conflict in Europe 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, including Crimea which Russia annexed in 2014.

"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 in the interview.