It was the first since the Second World War .
Third American Karakoram Expedition -- The 1953 American Karakoram expedition was a mountaineering expedition to K2 , at 8,611 metres the second highest mountain on Earth .
K2 was the first since the Second World War .
Third American Karakoram Expedition -- The 1953 American Karakoram expedition was a mountaineering expedition to K2 , at 8,611 metres the second highest mountain on Earth .