Speaking in Warsaw, Poland, on Saturday, President Biden said of Russian President Vladimir Putin: "For God's sake, this man cannot remain in power."

White House national security adviser Jake Sullivan warned in an appearance on CBS' Face the Nation Sunday morning that if Russia hits any part of NATO territory, a "full" response will unfold

Stoltenberg warned that "if there is any attack against any NATO country, NATO territory, that will trigger Article 5" of the North Atlantic Treaty.

PM Boris Johnson - Putin Must Fail

President of the European Parliament, Roberta Metsola called for "immediate, quick, solid and swift action" and convened an extraordinary session of Parliament for 1 March.

Six days ago, Russia’s Vladimir Putin sought to shake the very foundations of the free world, thinking he could make it bend to his menacing ways. But he badly miscalculated. He thought he could roll into Ukraine and the world would roll over. Instead, he met with a wall of strength he never anticipated or imagined. He met the Ukrainian people.

the Security Council failed to adopt a draft resolution which would have "deplored, in the strongest terms, the Russian Federation's aggression" on Ukraine. Of the 15 member states on the Security Council, 11 were in support, whilst 3 abstained from voting. The draft resolution failed due to Russia's veto.

NATO – Secretary General Jens Stoltenberg condemned the attack and called it a "grave breach of international law"

"This is the saddest moment in my tenure as secretary general of the United Nations," UN Secretary General Antonio Guterres said. "President Putin, in the name of humanity, bring your troops back to Russia' and don't start 'what could be the worst war since the beginning of the century."

President Biden released a statement late Wednesday saying that Russian President Vladimir Putin launched a "premeditated war" against Ukraine.

"The prayers of the entire world are with the people of Ukraine tonight as they suffer an unprovoked and unjustified attack by Russian military forces," Biden said.