Five Eyes as a concept is far too "white man oriented" for certain individuals and groups. Even when it excludes "white men" like Germany and France. It is held to Anglophone countries for reasons of shared cultural values.
NATO is an altogether different topic although it certainly benefits from 5E intel. Had Stalin been more relaxed in his outlook, I doubt NATO would have succeeded over the long term. That NATO iteration is long gone, the current iteration made a mistake in looking for new missions when it should have concentrated on outstanding issues of military integration during the years when there was less tension in Europe. Add to that the outsized ambition of certain EU powers to be "playuhs" again, and NATO's value as a deterrent is less than what it once was.
NATO is an altogether different topic although it certainly benefits from 5E intel. Had Stalin been more relaxed in his outlook, I doubt NATO would have succeeded over the long term. That NATO iteration is long gone, the current iteration made a mistake in looking for new missions when it should have concentrated on outstanding issues of military integration during the years when there was less tension in Europe. Add to that the outsized ambition of certain EU powers to be "playuhs" again, and NATO's value as a deterrent is less than what it once was.
Fire In The Hole