Ugh, Tihr- I still shudder at the memories.
I took over the world with two separate armies. One was Vaegir knights, and the other was nord huscarls. I needed an all cavalry army to get around the map fast enough to protect all my holdings. It was a very irritating way to play the game. I'd take a castle or city, park my nords in it, run around with a few knights getting recruits to garrison the castle (50 recruits for a castle, 100 for towns), then grab the rest of my knights and gallop full speed to the other side of the map to raise a siege or kill a looting army. Then lay a beating on 10-15 lords who are getting good sixed armies, then, while they are licking their wounds, grab some nord recruits, head to the last castle I took, switch my knights for nords and start all over again.
The nonstop fighting got a little boring, and I actually quit the game for a few months because of it. Then I returned revitalized, and finished the rest of the map. You also have to be a little careful. I had a lord who kept sieging Asugan castle with his 120 men. I finally had a chance to go chase him off, and zipped to Khergistan with about 60 knights. I saw the battle had already started, so I rushed to join the defenders. I got the shock of my life when I saw it was around 1500 against our 100, instead of the 120 against our 100. Apparently the entire khergit army was there. I would love to tell you how we held off the enemy against all odds, but alas...