Well I've been waiting all weekend for someone to report to Captain that the army was gathering near Boghaz-Kesen and preparing to cross...or for someone to check out the unusual "fishing boats".
In the interests of moving the thread along, therefore, I have now bumped the thread forward to the wee hours of the 17th and added a new map.
Your nothern scouts have now reported home (sometime) and you spent a while looking across the way, so you will now be able to determine the following:
- a large army seems to be gathering near Boghaz-Kesen, although they don't seem to be taking great pains to disguise their movement
- a strange collection of fishing boats seems to be gathering there too. You'd think that they were disguised transport vessels...except no one with any real experience has looked at them yet. Perhaps you might consider doing that on the 17th?

- a large army seems to be gathering considerably more secretly near Uskudar
- either you are horribly mis-informed, or when you add up the two approximations there are too many men over there. As far as you knew a day ago, there were probably around 15k-20k over there and now there seems to be something a lot more like 30k+
The crappy map I drew has been updated to show this with a collection gathering in the slightly wider area of the Bosphorus and another near Uskudar. Make of it what you will...