This video from the USA is called Urban Warfare Drill Chicago 2012 Blackhawk helicopters NATO | G8.
The US Department of Defense conducted urban warfare training drills in the Chicago suburb of Tinley Park this week, including the use of explosives to train soldiers in the raiding of homes and other structures: here.
Urban warfare exercise in Tinley Park frightens some residents: here.
Related articles
- ‘Urban Warfare’ Exercise Conducted In Tinley Park (chicago.cbslocal.com)
- Dept of Defense conducts urban warfare training in Tinley Park (illinoisreview.typepad.com)
Dear Kitty. Some blog 
Ils ne pensent pas à la paix, ils ne pensent qu’à faire la guerre et en tout lieu.
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Yes, apparently including Chicago.
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