Team games: Teams vs Alliances

[Septimius Severus]

Another potential snag with the flexible team model might be keeping track of these shifting alliances. Could be something of a headache, especially the larger the game. Who keeps track? Must the admin keep a list? If so it might wind up looking something like this:

Turn 5 Pangaea and Arco report they are now allies
Turn 7 Man, Gath, and Ulm report they are now allies
Turn 11 Pangaea, Arco, and T'ien Chi report they are now allies
Turn 15 Abysia and Caelum report they are now allies
Turn 16 Arco reports they are no longer allied with Pangaea and T'ien Chi'
Turn 20 Abysia, Caelum, and Arco report they are now allied
Turn 23 Man reports they are no longer allied with Gath and Ulm
Turn 27 Agartha, Man, and Marignon are now allies
Turn 29 Gath, Ulm, Pangaea, and T'ien Chi' report they are now allies
Turn 33 Marginon reports they are no longer allied with Agartha and Man
Turn 34 Abysia reports they are no longer allied with Caelum and Arco
Turn 37 Abysia and Arco report they are no longer allied with each other
Turn 40 Arco and Caelum report they are now allies
Turn 42 Man, Agartha, and Abysia report they are now allies

etc...

Would this list or such shifting alliances be made public knowledge? Known only to the players themselves? or just to the admin? Seems in order to satisfy the multiple nation victory condition the admin would need at least need to know. At what point must nations report they are now allied/a team? At a certain turn? If not made public knowledge until a certain point in the game, would teams be able to work covertly together?