Walmart, the retail giant and nation's largest grocer by revenue, has announced an ambitious plan to expand into more than 150 large-format stores over the next five years. The move comes as Walmart plans to strengthen its position in the retail landscape, emphasizing the importance of brick-and-mortar locations despite the burgeoning influence of online competitors. As the largest private employer with about 1.6 million employees and approximately 90% of the U.S. population living within 10 miles of a Walmart store, the company is in it way to reinforce its retail dominance.

The company, which already operates in more than 4,600 stores across the country and nearly 600 Sam's Club warehouses, aims to extend its footprint further. While few locations will be expanded from smaller formats into Supercenters with a complete range of groceries and merchandise, the majority will be brand new stores.