I dont agree with people that say it's not useful to use your general as warlord. In fact I use them only as warlord, never as instructor and the reason is easy to explain. As instructor they give +2 exp points to all units, this can give you 2th level units, nothing so useful or that you cant get with some battles. A unit with warlords is much stronger and with the option leadership can improve quicker as a normal units. My first unit usually reach very high level with more than 100 exp points! No other unit can reach same level. The war utility of such units are very easy to explain: often they can win a battle that no other unit can win, avoiding losses from suicidal attacks. When you have 5-6 units like this no opponent can avoid loss. Furthermore, no cost upgrades means 500-600 gp saved for each upgrade, very powerful options. Generals as istructors could be useful after 5-6 generals in same city, but you have also to consider: how many units you will build in that city during a game? And to get 5-6 generals, fighting with normal units, how many you will lose? Then I didnt find any reason to change my strategy, even if I've tried some others. The only good option is for Military Academy, but this possibility comes too late in the game to be considered, because at that moment my cities can built any units in 2-3 turns. If military Academy could be possibile early in the game then it will be a good alternative as generals as warlords.