First, it is recommended that you have an armory. Continuously build troops in all or atleast most of your castles. Choose one castle (not your capital) to dumpSecondly, we advise you to hide your troops while you are away from the game and cannot be bothered to dodge an attack. This can be done in one of two ways:
1) support a few lower lvl castles a safe distance from your castle. If u do this, do not put all your eggs in one basket as it is alway possible for an enemy to spy that castle without u knowing and attack it; easily killing all your troops without much resistance. broadcast these locations at your own risk.
2) the most secure way is to march all your troops, including your armory, on a lvl 1 castle some distance away. At night for instance i march mine on an 8-10hr round trip depending on how long I plan to be asleep. It is recommended that u keep one cat in each town so that you do not have to march as far. Bookmarking this location will save u the trouble of scrolling the map every night. your excess troops into in order to stay out of the red at all others. This will mean that your armory is severely in the red and you should never march from it (with one exception to follow in the next segment). However, after losing a big battle u can easily refuel your lost troops from this armory and, without much delay, continue marching on targets. This will also allow u to swap out cats or cav if u need to switch up strategies for a certain target.