This video from the USA says about itself:
10 September 2016
Newly published papers show that one of the country [Britain]’s top civil servants held a private summit with senior American, French and German politicians at which they decided to provide “discreet support for Afghan guerrilla resistance”.
More about this in the British (Conservative) Daily Telegraph.
So, Margaret Thatcher not only helped to sell British weapons to Saudi Arabia which are now used for killing Yemeni civilians. Ms Thatcher also helped finance violence by the self-styled mujaheddin in Afghanistan; including Osama bin Laden and what eventually became al-Qaeda and the Taliban.