In the densely forested mountains along the contested frontier between Serbia and Kosovo, a patrol of American soldiers under NATO command trudged through snow and mud, keeping an eye out for smugglers or anyone else trying to cross the border. Given the bloody legacy of this area, the situation is quiet now, at least up here.
https://www.nytimes.com/2017/02/19/world/europe/russia-nato-balkans.html?_r=0
