The comings and goings of some random lordling in Dorne aren't really the concern of a king at war. I do have a Dornish omake in the works.
I'll try to post that tomorrow. This vote can close here.
Dammit, was working on the changes I mentioned just now.
Edit:
I might as well post the version of the plan I had been tweaking, even if it doesn't count. I was waffling on doing more or not, but in the end I didn't change all that much.
[X] Plan: From Seven Kingdoms, One.
-[] The Seven Kingdoms will remain a united Realm. The previous victors can forgive, and those that once fought against their rightful King, Stannis, can regain their honor and pride by fighting for King Robert II and Queen Shireen, and defend their homeland alongside their fellow Westerosi against those that would threaten them all.
-[] Send those ravens to Winterfell and the Wall. What exactly is going on there? What do they need? Let them know you're preparing a relief force as the ravens fly.
-[] The relief force for the North and the Wall will consist of approximately:
5,000 Riverlanders
10,00 Valemen.
5,000 Stormlanders
2,000 Reachmen
2,000 Dornishmen.
2,000 Westerlanders.
Bronze Yohn Royce is to command the entire force. Upon joining with your father or the Watch (whoever they contact first), they will follow Lord Stark's orders and/or work with the Northern forces and Lord Commander. Try to remain in contact with Winterfell and the Watch as they travel. There are reports of a huge wildling army coming to cross the Wall; their mission is to stop them. All the while, advise Royce to be mindful of the (albeit unlikely) possibility of the Golden Company landing on the east coast. And while the Iron Fleet has not reappeared, they could show up again any place or time. If you do not have scouts or guides that know the North to spare, then send ravens to the lords the Northern relief force would meet along the way and let them know they could use some guides and scouts that know the lands.
-[] Send word to Tyrion Lannister. It's in the interest of everyone to investigate the Iron Islands and figure out just what the Ironborn are up to, and act accordingly from there. Lords Velaryon and Mallister will be sent to offer their direct assistance (for their naval expertise, the latter knowing the Ironborn as well, and to make sure the Lannisters are playing ball).
The forces sent will include approximately:
1,000 Dornishmen.
2,000 Stormlanders
2,000 Riverlanders
1,000 Reachmen
1,000 Westerlanders
5,000 Valemen
This will be under overall command of Tyrion Lannister. However, depending on how things go this can be a diplomatic mission as much as it is a show of strength (/force if needed). Keep that in mind if trying to talk to the Ironborn...though also keep in mind it would be Ironborn that they'd be talking to...
-[] The Hunt for Aegon:
Your remaining force will be held in reserve near Duskendale to deal with Aegon, or any surprise that comes to Westeros's shores in the meantime as he is being tracked down. This force is comprised of approximately:
25,000 Valemen
8,000 Riverlanders
8,000 Stormlanders
3,500 Dornishmen
3,500 Westerlanders
3,500 Reachmen
Lord Tarly will be in command of the armies and Davos Seaworth in charge of the naval forces. Of course, you, Robert Stark II, will be in overall command. You cannot move your forces to chase after Aegon (or the Iron Fleet if necessary) until you know where they are. Send out 'trade envoys' to gather information on where Aegon is, or any word on the Iron Fleet for that matter. Consult the Manderlys, Lord Velaryon, Tyrion Lannister, for any contacts they have, trade related or otherwise. Desmera Redwyne would do well to prove her loyalty in a similar capacity. Tyene Sand said she would serve you however she could to get revenge against Aegon. Seek her and Arianne Martell's assistance in finding information on where Aegon is, and perhaps getting someone to poison him with any luck.
I think it gives the Commanders more authority and makes the armies more united. But maybe it wouldn't have actually made a difference. *shrug* Was hoping for a bit more time and discussion on that.
@Meneldur sorry...I said I would add a bit about guides before but it slipped my mind. It's in this version.