The Guardian reports: One of America’s most celebrated generals has issued a harsh indictment of his country’s campaign in Afghanistan on the 10th anniversary of the invasion to topple the Taliban.

The US began the war with a “frighteningly simplistic” view of Afghanistan, the retired general Stanley McChrystal said, and even now the military lacks sufficient local knowledge to bring the conflict to an end.

The US and Nato are only “50% of the way” towards achieving their goals in Afghanistan, he told the Council on Foreign Relations.

“We didn’t know enough and we still don’t know enough. Most of us, me included, had a very superficial understanding of the situation and history, and we had a frighteningly simplistic view of recent history, the last 50 years.”