Playing as Germany I have Japan surrounded in JInghong/Kunming. Chinese forces to the north are my allies. Naturally, in these circumstances I would just wait out while the Japanese army crumbled from lack of supply. But I came back to this area after a week or two busy elsewhere to see the Japanese still in full supply? So looking at the tooltips, I can see that all the units in the pocket are supplies from Jinghong. I look at the Jinghong details and I see there is a supply depot with the usual supplies, metal energy, rares. Supplies are only 6+ so with 18 unist to supply this will disappear in a day or two. I sit on this area and literally watch the supplies ticking down. Hey presto, when supplies fall to around 3 they automatically jump up to around 8. I watch this happen twice. Strange, considering being in supply is one of the central pillars of the whole HOi2 stable. I get that the AI has to cheat a bit but this seems to undercut a central plank of the whole game philosophy. Why would AoD abandon that? And why secretly?