https://www.diversitybestpractices.com/best-both-ergs-and-inclusion I found this article that speaks to the value added by recognizing cross-sectional groups within multiple ERGs. There are some really great thoughts in here on how to engage and create a more inclusive environment within the ERGs and the organization
I found this published document that gives insight into the challenges and benefits of international ERG partnerships. I was able to quickly find relevant material by searching the document for key words. Certainly worth the effort!