Back to Merc generals, does anyone know if these guys have their bodyguards topped up when out on campaign? Or do they have to be in town to pick up fresh guys?

I've built a full stack army with 8 Lesser Celtic Kings, 4 Greek Generals, 4 Numidian Generals, and 4 Italic Generals. They're mostly 1 or 2 silver chevronned due to training bonuses and retainers, and I'm about to take them over to Asia Minor to kick some Ptolemy arse.

It would be really nice if they do get new guys to make up for the fallen. Obviously I need to be careful that the main guy in each unit doesn't die!