By Jeremy Herb - 03/27/12 02:53 PM EDT
A man who was apparently a local policeman allegedly killed an American in eastern Afghanistan on Monday, and two British troops were shot and killed in southern Afghanistan, according to CNN.
The green-on-blue violence against American soldiers is simply “a characteristic of counterinsurgency [operations],” Allen told reporters during a briefing at the Pentagon.
Allen noted that the majority of the attacks by Afghan soldiers are not due to Taliban infiltration, but rather the result of soldiers who become “self-radicalized,” and that many have also attacked fellow Afghan troops.
So far in 2012, 16 of the 93 NATO troops have been killed in “green-on-blue” attacks, according to CNN.