[mattyburn7]

As for NAP, generally it means you have to give that much notice with NAP3 being standard but I've also seen NAP2 and NAP5 (i.e. 5 turns notice before attacking). You can also do peace treaties Where you say no war until turn 25...Or even No war until Turn 25 then NAP3 from that point forward.

Some games have house rule that you MUST honor the NAP. Most don't have that houserule but I think in those games if you break a NAP you get a black mark that carries over into other future games.

Also if you trade gems are items it is generally understood that you must follow through with the trade.

CHeers.