Since the city of Kalimat was right next to a river city, rather than marching his huge force through the land, Alexander had decided to send a part of his army along it.
This relatively small river was still part of the huge tributary network that spanned across the entire country, its mother- the mighty Diannu river.
Thus by following it, it was found that they could easily reach Alexander's next destination- the capital Parthenight.
This was one of the most important things that Alexander's men were busy preparing for while the young lord busied himself with his own troubles, as they tried to requisition every available boat in the surrounding vicinity to enable the journey.
However despite their best efforts, given the city's small size and population as well as simply the limited size of the waterway, they were only able to gather a modest number of boats, certainly not enough to escort the more than 40,000 of Alexander's men.