https://www.washingtonpost.com/opinions/2022/12/27/russia-genocide-ukraine-children/
War is not an excuse to abduct children from parents and their nation, as Russia is now doing in Ukraine. This is specifically prohibited by the 1948 United Nations Convention on the Prevention and Punishment of the Crime of Genocide. The transfer of Ukrainian children to Russia — and attempts to brainwash them, removing their language and culture — is a genocidal crime that calls for prosecution.
Russia’s abductions of Ukrainian children are a genocidal crime

The transfer of Ukrainian children to Russia — and attempts to brainwash them from their language and culture — must be prosecuted.

The Washington Post