Amazon workers in 20 countries, including the United States and the United Kingdom, are planning to strike or protest on Black Friday and Cyber Monday as part of “Make Amazon Pay” demonstrations. The demonstrations are a way for employees to protest poor working conditions.

Amazon workers in more than 20 countries are set to hold protests between Black Friday and Cyber Monday, the busiest shopping weekend of the year.

Amazon employees around the world are preparing for protests and strikes on Black Friday. The global effort has been organized by UNI Global Union, which represents service industry workers, and activist group Progressive International.