What is the logic around three way alliances and declaring war? For example, Player 1 and Player 2 each have an alliance with Player 3. Player 1 then declares war on Player 2 - what does Player 3 do? Declare against P1 in defense of P2, or declare against P2 in support of P1, or does P3 declare against both Civs, or neither? Played a few games and run into this scenario several times with varying results. Very confused.