The Guardian reports: A study conducted by a US military adviser has found that drone strikes in Afghanistan during a year of the protracted conflict caused 10 times more civilian casualties than strikes by manned fighter aircraft.

The new study, referred to in an official US military journal, contradicts claims by US officials that the robotic planes are more precise than their manned counterparts.

It appears to undermine the claim made by President Obama in a May speech that “conventional airpower or missiles are far less precise than drones, and likely to cause more civilian casualties and local outrage”.

Drone strikes in Afghanistan, the study found, according to its unclassified executive summary, were “an order of magnitude more likely to result in civilian casualties per engagement.”

Larry Lewis, a principal research scientist at the Center for Naval Analyses, a research group with close ties to the US military, studied air strikes in Afghanistan from mid-2010 to mid-2011, using classified military data on the strikes and the civilian casualties they caused. Lewis told the Guardian he found that the missile strikes conducted by remotely piloted aircraft, commonly known as drones, were 10 times more deadly to Afghan civilians than those performed by fighter jets. [Continue reading…]