Starbucks workers at more than 100 stores going on strike

Starbucks workers at more than 100 U.S. stores say they’re going on strike Thursday in what would be the largest labor action since a campaign to unionize the company’s stores began late last year.

The walkouts are scheduled to coincide with Starbucks’ SBUX, -0.44% annual Red Cup Day, when the company gives free reusable cups to customers who order a holiday drink. Workers say it’s often one of the busiest days of the year. Starbucks declined to say how many red cups it plans to distribute.

Workers say they’re seeking...