EU is smaller than NA

4 actually.

• EU West
• EU Nordic & East
• Russia
• Turkey

And technically, there are already 2 servers for NA:

• NA (west)
• Latin America North (east)

*Citation

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And they have east/west servers Riot please explain.

Europe has 740 million population spread out over 3.9 million square miles.

The United States has 313 million population spread out over 3.8 million square miles.

It is cheaper to build infrastructure to support a higher population density.