Starbucks yesterday announced ambitious plans to expand into mainland China by 2015. The decision comes less than two years after the coffee giant closed hundreds of U.S. locations, citing

the recession and "store oversaturation." Since then, "the company has turned around its U.S. business," says Angela Moore at MarketWatch, but it should be careful with its "aggressive

expansion in China" and "heed lessons from recent years." (Watch CEO Howard Schultz discuss the move.) Here, a brief guide to Starbucks' China gambit, by the numbers:

Number of stores that Starbucks wants to be operating in mainland China by 2015, tripling its current tally