A judge has ruled Amazon must reinstate a former warehouse employee who was fired in the early days of the pandemic, saying the company "unlawfully" terminated the worker who led a protest calling for Amazon to do more to protect employees against COVID-19.

The dispute involving Gerald Bryson, who worked at an Amazon warehouse in the New York City borough of Staten Island, has stretched on since June 2020, when Bryson filed an unfair labor practice complaint with The National Labor Relations Board, claiming Amazon retaliated against him.

Later that year, the NLRB said it found merit in Bryson'...