Which global retail giant is known for its 'clustering strategy' where it saturates specific geographic regions before expanding to new territories?

The world's largest retail companies strategically position their stores across the globe, creating fascinating patterns of geographic expansion. Their store distribution often reveals insights about market strategies, cultural adaptation, and economic geography. This trivia question explores how one major retail giant has uniquely approached its global footprint in a way that differs from its competitors.

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Walmart - focused on creating dense networks of stores within driving distance of regional distribution centers
Amazon - primarily establishing fulfillment centers in the geographic center of each country it enters
Carrefour - using a 'flagpole' approach by opening one major hypermarket in each major city globally
Alibaba - following population density maps to place equal numbers of facilities in all inhabited regions