Wal-Mart Files Labor Charges Against Union

Accuses them of unlawful attempts to disrupt their business

Wal-Mart Stores Inc is taking its first legal step to stop months of protests and rallies outside Walmart stores, targeting the union that it says is behind such actions.

Wal-Mart filed an unfair labor practice charge against the United Food and Commercial Workers International Union, or UFCW, asking the National Labor Relations Board to halt what the retailer says are unlawful attempts to disrupt its business.

The move comes just a week before what is expected to be the largest organized action against the world's largest retailer, as a small group of Walmart workers prepare to strike on Black Friday, typically the busiest shopping day of the year.