What President Putin is doing is not only a grave violation of international law, it is a violation of the basic principles of human co-existence. With his choice to bring war back to Europe, we see the return of the "law of the jungle" where might makes right.
The target is not only Ukraine, but the security of Europe and the whole international rules-based order, based on the UN system and international law.
His aggression is taking innocent lives, crushing people's wish to live in peace. Civilian targets are being struck, clearly violating international humanitarian law, forcing people to flee.
We see a humanitarian catastrophe developing. For months, we pursued unparalleled efforts to achieve a diplomatic solution. But Putin lied to the faces of all who met him, pretending to be interested in a peaceful solution.
Instead, he opted for a full-scale invasion, a fully-fledged war.
Russia must cease its military operations immediately, and unconditionally withdraw from the entire territory of Ukraine.
The same goes for Belarus, which has to immediately stop its involvement in this aggression and respect its international obligations.
The European Union is united in offering its strong support to Ukraine and its people. This is a matter of life and death. I am preparing an emergency package to support the Ukrainian armed forces in their fight.
The international community will now in response opt for full-scale isolation of Russia, to hold President Putin accountable for this aggression.
We are sanctioning those who finance the war, crippling the Russian banking system and its access to international reserves.
The EU and its partners have already imposed massive sanctions on Russia that target its leaders and elites and strategic sectors of the Kremlin-run economy. The aim is not to harm the Russian people, but to weaken the Kremlin's ability to finance this unjust war. In doing this, we are closely aligned with our partners and allies – the US, Canada, the United Kingdom, Japan, South Korea and Australia.
We also see many countries from around the world rallying to protect the territorial integrity and sovereignty of Ukraine, including our friends in Aotearoa New Zealand. We stand together on the right side of history in the face of Russia's horrifying attack on a free and sovereign country.
To justify its crimes, the Kremlin and its supporters have engaged in a massive disinformation campaign, which started already weeks ago. We have seen Russian state media and their ecosystem peddling untruths in social media networks with the aim to deceive and manipulate.
The Kremlin propagandists call the invasion "a special operation", but this cynical euphemism cannot hide the fact that we witness a fully-fledged invasion of Ukraine, with the aim to crush its freedom, legitimate government and democratic structures.
Calling the Kyiv government "neo-nazi" and "Russophobic" is nonsense: all manifestations of Nazism are banned in Ukraine. In modern Ukraine, extreme right-wing candidates are a fringe phenomenon with minimal support, without passing the barrier to enter the parliament.
The Ukrainian Government did not cut the Donbas off and it has not prohibited the use of the Russian language and culture. Donetsk and Luhansk are no republics, they are Ukrainian regions controlled by Russia-backed and armed separatist groupings.
We know this - and many Russians know this. There have been courageous protests in cities across Russia since the invasion started, demanding the end of the aggression against a peaceful neighbouring nation. We hear their voices and recognise their courage.
I continue to work with our partners around the world to ensure the joint action of the international community against the Kremlin's behaviour. On February 25, only Russia vetoed a UN Security Council Resolution on Russia's aggression against Ukraine, with China, India and the United Arab Emirates abstaining.
From all over the world, countries condemn Russia's attacks and at the General Assembly, the entire international community needs to join forces and help to end Russia's military aggression by adopting the related UN Resolution.
We particularly thank Aotearoa New Zealand as co-signatory of the resolution.
Aotearoa New Zealand can rightly stand proud for its support of the international rules-based system, a resounding endorsement that dates back to the very beginning of the United Nations when New Zealand was a founding member.
Support for Ukraine is support for national sovereignty and the international rules-based system. Relatively smaller countries – including New Zealand and those in the Pacific – depend on rules and adherence to them for their collective security, stability and prosperity.
This is imperilled now.
Without it, New Zealand faces the same world in which it sent 250 000 people to fight in WWI and WWII.
With this war on Ukraine, the world will never be the same again. It is now the time for societies and alliances to come together to build our future on trust, justice and freedom. It is the moment to stand up and to speak out.
Might does not make right. Never did. Never will.
• Josep Borrell is High Representative of the European Union for Foreign Affairs and Security Policy.