Amazon announced on Tuesday that it plans to close its Amazon Fresh and Amazon Go brick-and-mortar stores across the United States. This marks a significant change in strategy for a company that once promoted technology-driven grocery retail as its future. According to company listings, there are currently 14 Amazon Go cashierless convenience stores and more than 50 Amazon Fresh supermarkets operating nationwide. Earlier this month, Amazon also revealed plans for its largest-ever retail store, a 230,000-square-foot location outside Chicago. Amazon Fresh stores were designed as full-size, modern supermarkets, offering a wide range of groceries.