So i played a game on very easy and had a kinda good troop and own kingdom with 1 city when southern empire already owned the complete eastern part of the map. since i saw they would kill all the remaining factions i invaded them took 2 citys and 2 strongholds and after that only roamed around killing off 500-men armys of them for 3 hours. since i needed a break to fill up my troops i made peace with them and went on a 1 week recruiting trip. when i came back i was already surrounded by them cause they also ate battania that was already snacked up with the western empire and some stuff of the desertlands. i didnt really understand how this happend because at some point battania and SE had both 8k strength but battania declined with time although they didnt had much war or something going on because i held SE off of them. it should be patched that lords start with a 25 men army to fight off bandits after they got out from capture, they should get constantly a bit gold per day to recuit new troops and they should take these troops from any faction on the map. i saw in my own games that my clanparties only gathered men from my own towns while they left villages that didnt belong to us for no reason without recuiting something there although they were on only 30 partymembers.
Also the AI should make armies to fight off enemie armies and there should be some sort of exhausting after a army took over a town or castle. you could maybe think about countries making peace with their enemies after 2-3 settlements took over too.