Biden: Never, ever, will we recognize Russia's efforts at territories in Ukraine

He made these statements before the speech Russian President Vladimir Putin will hold on Friday.

It is expected to declare that four Ukrainian regions will join Russia.

The Kremlin has said that Luhanscu, Donjecku, Zaporija and Herson have voted in so-called referenda to unite Russia.

Ukraine and the West view these referenda as false.

The United States will impose new sanctions on Russia due to the intended annexation.

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On Thursday, the Russian president has signed two decrees through which he recognises the Zaporizja and Herson regions as independent territories, paving the way for annexation.

In documents, which have distributed to state media, it has been said that the independence of these two regions is in line with international law.

However, UN Secretary - General Antonio Guterres has said that this annexation of state territory is based on the use of force and is contrary to international law.

The “is a dangerous escalation that has no place in the modern world”, he said.

Preparations for Putin's speech have been made at Moscow's Red Square.

This event is expected to be a repeat of that in 2014, when Russia annexed the Ukrainian Crimea Peninsula.

Nor has that annexation been recognised by most of the international community.

Western experts believe Putin hopes to annex Ukraine's occupied regions so that it can argue that Russian territory is under Western arms attacks. According to them, Putin thus learns to persuade some Government not to send military assistance to Kiev.

Ukrainian authorities, on the other hand, have said Putin's decisions on annexation do not change the situation on the battlefield.