Ukrainian President Volodymyr Zelenskiy said on Thursday he told U.S. President Donald Trump in a telephone call that a 30-day ceasefire was a "real indicator" of moving towards peace with Russia and Kyiv was ready to implement it immediately.
Zelenskiy spoke to Trump in the middle of a three-day ceasefire proclaimed by Russian President Vladimir Putin coinciding with commemorations of the 80th anniversary of the World War Two victory over Nazi Germany.
Zelenskiy has dismissed the three-day pause as meaningless and each side has accused the other of violating it.
"Ukraine is ready for a complete 30-day ceasefire from this very day, from this very moment," Zelenskiy said in his nightly video address.
"But it has to be real...Тhirty days which could become the beginning of years of peace. A ceasefire, both prolonged and reliable, will be a real indicator of a movement towards peace."
The Ukrainian president said Russia had to demonstrate its readiness to end the war, starting with an unconditional ceasefire.
A 30-day ceasefire was initially proposed by the United States in March and Ukraine agreed. Russia has said such a measure can only take effect once reliable measures of monitoring and upholding it are put in place.
Zelenskiy said he also spoke to Trump about the ratification by Ukraine's parliament on Thursday of an agreement to exploit Ukraine's mineral riches along with the creation of an investment fund for Ukraine's reconstruction.
He said he and Trump "noted how important it is that our relationship has strengthened our countries over the decades".
