As this thread indicates, there were some important lessons to be learned from the Falklands war. What annoyed me at the time was that the MOD refused to allow the dissemination or acknowledgement of lessons learned because 'it was a victory and should be celebrated as such'.
If one does not learn the lessons of war then lives will have been lost in vain and one is destined to repeat the mistakes.
In my experience, armed conflict is a series of errors and he who makes the least probably wins.