Airwars is a nonprofit organization that tracks air strikes and resulting civilian casualties in Iraq, Syria, and Libya. It monitors reports from local news, NGOs, social media, and residents to authenticate civilian casualty claims from airstrikes by the US-led coalition and Russia. Airwars is funded by charitable foundations and saw a dramatic increase in claimed civilian deaths from coalition airstrikes in early 2017, with over 1,000 casualties reported in March alone, pointing to potential changes in rules of engagement.