So, we declare war next turn.
As we discussed, we would like to trick RB in thinking that Starfall is our main goal and not Eastern Dealers. My initial idea was to park our whole army on the desert hill and have nearby 6 workers to road under our stack and if needed the flat desert tile so we can get and kill those 5-6 muskets from Starfall if they decide to start walking and reinforce Eastern Dealers in this turn (t174). Remember we must play before RB in this turn so we can join our allies by declaring war to RB in t175 in the first half of the timer.
My guess is that we move whatever we can on D1 this turn - canons, muskets, knights, whatever. If RB moves their all 5 (6 with draft from this turn) muskets in the second half of the turn trying to reinforce Eastern Dealers, they can only end on D3. But of course this will mean Starfall is empty, so we can take it in t 175 with 1-2 knights and then the Stone tile will be out of RB culture, so we can hit this moving group on tile D3 with canons and then finish them with muskets, so they never will reach Eastern Dealers. If they stay in Starfall, even better, we move towards the city with canons and muskets to take it with force.
As for our knights which have the task to take Eastern Dealers, I think it will be best if we move them along with couple muskets and canons on p3, being it in the shrinked culture after we take Starfall in t 175 if they empty it this turn, or we can build a road for our armies with our 2 workers on p1.
With moving knights and other units on p1, we are in position to strike at Eastern Dealers in the beginning of t176 and we dont fully give away our intentions. Or we can even move knights closer to Forbidden Fruit.
What you guys think?