There were protests mainly against police brutality and systemic racism. Much like the MLKJr movement for the equality of people in the U.S. this was also followed with a small amount of unrest. But they are justified in what they want from the country and they have every right guaranteed by the constitution to assemble and protest.
Answer: they first were deployed to help soldiers contain, but then they followed the government, and now they are free, but still chained in some way.