Well, Germany and Austria/Austria-Hungary are obvious contenders. The phrase of "Triple Brits success for" in modern parlance are somewhat shorn of military significance. I'd lean toward something like this:
1914: No assassination of FF
1920: Late accession of FF to throne of A-H
1930-50: A-H disintegrates slowly or comes apart peacefully
1940-1960: Formation of European Commerce Federation
1970-1980: End of British Empire (premature end forestalled by absence of both World Wars and Communism)
1980s: Britain edges toward unity with Europe, but is pretty, well, British about the whole thing.
1995: Following diplomatic efforts made by both Kaisers, the English parliament finally begins to authorise moves toward European integration. Hence the headline.
