ESA to consider joining Gateway Moon project (theguardian.com)

> If ministers give the go-ahead, the European Space Agency (Esa) – of which Britain is a key member – would then join other international partners that Nasa is recruiting to its Gateway project. These include the space agencies of Russia, Canada and Japan.

According to https://translate.google.com/translate?sl=auto&tl=en&js=y&pr... , Russian space agency participation is not assured.