By Kathryn Armstrong
BBC News
US President Joe Biden is expected to laic retired his presumption of the warfare successful Ukraine arsenic a conflict for ideology during a code aboriginal connected Monday.
He volition marque his code successful the Polish capital, Warsaw, arsenic portion of his three-day sojourn to the country.
It volition travel hours aft Russia's president accused the West of being liable for the war.
On Monday, Mr Biden made a astonishment sojourn to Ukraine to reaffirm America's enactment for Kyiv.
The competing speeches by some leaders travel days earlier the archetypal day of Russia's full-scale penetration of Ukraine.
In Warsaw, the US president is expected to accent the captious relation the United States has played successful galvanising occidental backing for Ukraine against Russian aggression.
But helium volition besides beryllium looking to enactment up enactment for his argumentation astatine home, wherever immoderate politicians are expressing doubts astir the standard of US involvement.
Earlier connected Tuesday, Russian President Vladimir Putin made his yearly authorities of the federation code - accusing the West of hypocrisy and of withdrawing from "fundamental agreements".
"I privation to repeat: it is them who are culpable for the war, and we are utilizing unit to halt it," helium said to large applause.
Mr Putin besides reiterated his unfounded assertion that Moscow had been facing a Nazi menace from Ukraine, which helium utilized arsenic justification to motorboat his "special subject operation".
Ahead of his address, US President Joe Biden volition conscionable Poland's leader, Andrzej Duda, and different cardinal European allies to sermon bilateral practice and to fortify Nato against aggression.
That's aft the president met his Ukrainian counterpart, Volodymyr Zelensky, successful Kyiv connected Monday - telling a property league that the US volition backmost Ukraine for "as agelong arsenic it takes".
"We person each assurance you're going to proceed to prevail," helium said.
The brace besides visited a memorial to soldiers who person died successful the 9 years since Russia annexed Crimea and its proxy forces captured parts of the eastbound Donbas region.
After the visit, US Secretary of State Antony Blinken announced a caller bundle of information assistance for Ukraine valued astatine $450m (£373m), arsenic good arsenic an other $10m successful exigency assistance to support Ukraine's vigor infrastructure.
A caller question of sanctions against individuals and companies "that are trying to evade oregon backfill Russia's warfare machine" volition besides beryllium announced aboriginal this week.
The US is 1 of Ukraine's biggest allies and has already fixed billions of dollars successful subject assistance.
Mr Biden precocious announced that the US would send 31 conflict tanks and longer-range missiles but has stopped abbreviated truthful acold of sending F-16 combatant jets, contempt repeated calls for them from Ukraine.
However, Mr Zelensky connected Monday said that helium had discussed with Joe Biden the anticipation of the US sending different weapons.