Suggestion Idea: Have some way to offer alliances that cannot be broken.
Specifics: One player would offer an alliance to the other, choosing from the two types. One way for alliances include whole player alliances. This alliances does not let the two allies from attacking any of each others' territories. Another choice could be single territory alliances. These alliances only apply to one of each players' bordering territories.
The offered player could choose to accept, decline, or counter (change length or type of alliance).
Alliances would last somewhere between 1-5 rounds.
Alliances will be known by everyone in the game.
Why it is needed: This will stop unwanted breaking of alliances that could ruin a game. This would be just an option, and even if it is chosen, players can neogotiate the normal way.
Priority: 3.5-4