In the recent UN General Assembly resolution denouncing Russia's actions in Ukraine, only four countries were opposed, besides Russia itself.
We have Belarus, a close ally of Russia that is involved in the war; North Korea, whose leader is authoritarian, has strong historical ties with Russia, and harbors irredentist ambitions of his own relative to a neighbor; and Syria, which has grown close with Russia as the latter funds the government in its civil war.
And then there is Eritrea. It has somewhat warm relations with Russia, but most countries with very close relations with Russia (such as Cuba, Equatorial Guinea, or Nicaragua) either abstained or voted in favor of the resolution.
Did the Eritrean delegation provide any reasoning about their vote in favor of Russia?