Original sentence: Although it began as a peaceful protest with a goal of stopping the WTO talks, it escalated into a full-scale riot when large crowds become hostile and police were outnumbered, and eventually, a State of Emergency that put Peacful and unarmed protesters against the Seattle Police Department and the National Guard
Edited sentence: Although it began as a peaceful protest with a goal of stopping the WTO talks, it escalated into a full-scale riot when large crowds become hostile and police were outnumbered, and eventually, a State of Emergency that put protesters against the Seattle Police Department and the National Guard