What would you do with this campaign??

[Tellos Athenaios]

Another (perhaps silly) question: Do I have to negotiate safe passage of my armies through allied Makedonian territory? Or does the alliance take care of that implicitly?

That will be difficult (AI is usually rather conservative about sharing things which may risk its military security) but would of course be best ...

[Flying Pig]

I had a similar situation in my campaign, and can only reccomend one action: Forward, the light brigade! I samshed citizen armies into Egypt and the powerful syracusian forces I had raised from and APR government into Judea, and drove them to their deaths with local auxilia then marian troops.