Was it illegal for Russia to invade Ukraine in February 2022?
Less Validated
February 28, 2022 Feb 28, 22
It is legal for other countries to support the Ukraines’ self-defence countermeasures.
According to section 51 of the UN charter, members can use collective self-defence countermeasures to maintain peace and security. But other countries must immediately report these individual or collective self-defence measures to the UN Security Council.