(CNSNews.com) – In the past week, four U.S. troops have been killed by men wearing Afghan army or police uniforms –bringing to 17 the number of these killings this year and 64 the number since 2007.
Prior to 2007, the U.S. military did not keep track of the number of U.S. troops killed by Afghan soldiers and police.
The so-called “green on blue” attacks are a growing problem for the U.S. military, as coalition troops increasingly fall victim to the very same Afghans they are training to take over security responsibilities when most NATO forces leave the country at the end of 2014.