[Boomerang]

Gentlemen:

Thanks for those responses and the references you suggest. Looks like quite a lot of reading there.

I must admit that my thinking has been influenced by John Keegan's Intelligence in War: Knowledge of the Enemy from Napoleon to Al-Qaeda. Far be it for me to sum this up in a sentence, but my reading is that Keegan argues that, while good intel is a useful adjunct, in the end, battles and campaigns are decided by performance on the battlefield.

I'll do the work to draw my own conclusioins as to how well this applies to the use of Ultra against the LW.

Cheers

Don W