A Pentagon-appointed panel has found that the US military will not be able to maintain its current peacekeeping commitments in Iraq and Afghanistan without a significant increase in the size of the armed forces or scaling back the objectives of the stabilisation missions.

A report by the respected Defence Science Board was presented to Donald Rumsfeld, defence secretary, late last month. Mr Rumsfeld found the study compelling and ordered it to be presented earlier this month to all the uniformed chiefs of the four armed services as well as the military's combatant commanders, who oversee each of the Pentagon's six regional commands.