The author provides quite a comprehensive study of the militarization of police agencies by providing a history of their development and their transnational operations. You may be surprised to learn in this article that police/military agencies throughout the Empire are learning and training together in order to control any opposition coming from the Ninety-Nine Percent which are often seen, and dealt with, as an enemy. Within the US, these militarized police agencies disproportionately target African-Americans and other minorities.
US police forces uphold white supremacy with their racist implementation of violence, where in places like Ogden, Utah, Black people “were 40 times more likely to be impacted by a SWAT raid than whites were,” according to the ACLU. These forces work towards the preservation of capitalism, and the police, as an institution, use elitism, violence and authoritarianism in order to preserve the state.You may also be interested in Glenn Greenwald's views on this development within the US.