I've seen advanced ideas around alliance options, being unable to break the alliance, alliance for X number of turns - all great ideas.
How about another simple alliance feature?
Notify the game board, or show current alliances at a glance in the player list within the game. Would be nice to know who's allied with who at a glimpse and/or receive notification of alliances made/broken... kinda how it works playing risk irl.
I am all in favor of greater chat functions - for sure.
But I disagree that it would solve this. Chat could even allow players to mislead the others by with words while creating or maintaining an alliance using the feature as it exists today.
The request is for a transparent alliance feature that would notify when an alliance is made or broken. Icing on top if you can see all alliances at a glance at any given time.
Chat functionality would solve this, and many other issues!