If so then you made another mistake :-) as Ukraine is not a member state of the European Union.

[EEU vs WEU] You could see it sometimes abbreviated that way."

Please don't read my comment as aggressive but I have NEVER seen such abbreviated form.

"Eurasian union (I thought that one was largely defunct anyway?)"

This entity is very much alive and kicking (usually as much as Vladimir Putin wants it to be). The EEU presidency is held throughout 2019 by Armenia.