AP Photo

From her office on Avenue de la Paix, Swiss diplomat Heidi Tagliavini, 58, looks out onto the botanical gardens in peaceful Geneva. The view offers a welcome respite from the stacks of documents on her desk, which deal exclusively with war and war blame. They contain the responses, from the conflicting parties in the Caucasus region -- Russia, Georgia, South Ossetia and Abkhazia -- to a European Union investigative commission conducting a probe of the cause of the five-day war last August. The documents also include reports on the EU commission's trips to Moscow, the Georgian capital Tbilisi and the capitals of Abkhazia and South Ossetia, dossiers assembled by experts and the transcripts of interviews of diplomats, military officials and civilian victims of the war.

The Caucasus...