Here's a new visualization I created of the network of connected countries in the strategy game
Risk, colored by node and edge
betweenness centrality. You can easily see that Africa and Europe (the connected blob in the center) are harder to hold. Also, the Middle East, part of Asia in the game, belongs more with Europe and Africa according to Newman's community finding heuristic.
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The picture was drawn in
SocialAction. Below are the data files (based on the adjacency matrix from
Yura.net Domination) in
HCIL Network Visualization Input Data Format: