The strike by Starbucks (NASDAQ:SBUX) baristas that are members of the Workers United union ended on December 24. However, the labor issues for the coffee chain are far from over. The union organized the strike to protest a lack of progress in contract negotiations with Starbucks (SBUX).

A Starbucks barista strike is expanding to some 5,000 workers at more than 300 stores in 45 states, just as the company's busy holiday stretch begins.

A Starbucks barista strike is expanding to about 5,000 workers during the company’s busy holiday season. Workers walked off the job again on Tuesday and closed about 170 stores. Their union is calling for better benefits and immediate pay increases.