The thing that lies at the foundation of positive change the way I see it is service to a fellow human being.
My youth passed at the time of the country's reconstruction from the ruins...
You do have to change things as warfare changes.
As for goals I don't set myself those anymore. I'm not one of these 'I must have achieved this and that by next year' kind of writers. I take things as they come and find that patience and persistence tend to win out in the end.