Attrition rates had been high, likely because police have been threatened and killed by insurgents, especially in the south around Kandahar, the Taliban heartland.

VOA: standard.2010.06.16

The great war of attrition in Virginia.

当时在弗吉尼亚还有一场大持久战

耶鲁公开课 - 美国内战与重建课程节选