US President Joe Biden has accused Vladimir Putin of 'genocide' for his devastating invasion of Ukraine.
In a stinging attack over the Russian assault he said that Putin was 'just trying to wipe out the idea of being able to be Ukrainian.'
The comments came on Tuesday as Biden gave a speech at an ethanol plant in Iowa and he later stood by his words as he prepared to board Air Force One.
He told reporters: "Yes, I called it genocide because it has become clearer and clearer that Putin is just trying to wipe out the idea of being able to be Ukrainian and the evidence is mounting.
"We'll let the lawyers decide internationally whether or not it qualifies, but it sure seems that way to me."
Biden has repeatedly called Russian President Vladimir Putin a war criminal, but Tuesday marked the first time he accused Russia of committing outright genocide in Ukraine.
He had said at an event in Iowa on fuel prices: "Your family budget, your ability to fill up your tank, none of it should hinge on whether a dictator declares war and commits genocide a half a world away."
Secretary of State Antony Blinken and national security adviser Jake Sullivan have both stopped short of describing Russia's assault as a genocide in recent days.
"Based on what we have seen so far, we have seen atrocities,'' Sullivan told reporters last week. "We have seen war crimes.
"We have not seen a level of systematic deprivation of life of the Ukrainian people to rise to the level of genocide.''
Shortly after Biden's remarks, Ukrainian President Volodymyr Zelenskiy tweeted, "True words of a true leader @POTUS.
"Calling things by their names is essential to stand up to evil."
Under international law, genocide is an intent to destroy - in whole or in part - a national, ethnic, racial or religious group.
According to U.N. convention, this includes through killings; serious bodily or mental harm; inflicting lethal conditions and measures to prevent births, among other means.
Biden has made a handful of statements about the war that U.S. officials have later had to walk back.
The president stirred controversy on a recent trip to Poland when he ad-libbed a line at the end of a speech and said that Putin should not be allowed to remain in power.
The White House clarified that U.S. policy was not to seek regime change.
Genocide, considered the most serious international offense, was first used to describe the Nazi Holocaust.
It was established in 1948 as a crime under international law in a United Nations convention.
Since the end of the Cold War, the State Department has formally used the term seven times.
These were to describe massacres in Bosnia, Rwanda, Iraq and Darfur; the Islamic State's attacks on Yazidis and other minorities; China's treatment of Uighurs and other Muslims and this year over the Myanmar army's persecution of the Rohingya minority.
China denies the genocide claims.
