Rarely do trade unions go on strike to help overseas brethren. But among some Belgian supermarket employees, solidarity now includes U.S. workers as well. For the past month, members of a Belgian retail-employees union have struck stores owned by the Delhaize-Le Lion retailing giant.
The work stoppages are intended to persuade Delhaize to give a better deal to its nearly 30,000 workers in its 522 Food Lion stores in the U.S. Most of those employees receive no benefits and are paid 40% less than the wages earned at rival stores, according to the United Food and Commercial Workers International Union, which...