I Googled: Project "BACKSCRATCH" and got this result:

books.google.com/books?isbn=1586039679

Select it then go to Page 40. That chapter discusses the Bargaining Over Brawdy: Negotiating the Presence of American Military Presence in Wales 1971.

Toward the end of the Chapter it refers to the Project BACKSCRATCH, implicated in the bargaining process.

Hope this helps.

It was the establishment of NAVFAC Brawdy

Hmmmm -

Maybe the code name "BACKSCRATCH" had something to do with the old saying:

"You scratch my back, I'll scratch yours"

Seems it was mutually beneficial for both countries...........just saying

Irv

Apparently there are some documents you can view at the National Archives (UK)...see link.

Not digitized, though, so you have to go there in person.

I have digitised copies of the National Archive files, if anybody can share information about Gibraltar?