Boris Johnson has insisted that military intervention in Afghanistan over the last 20 years was "successful" and that British troops did not die "in vain". <br /> <br />Appealing to the families of fallen personnel, the prime minister said the combat reduced terror threats in the West and allowed millions of girls to be educated. <br /> <br />"What I would say to those families now is, I understand what you feel, but I believe that it was right, it was worth it," he said. Report by Buseld. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
