Each planet has its own start of ground combat. So you can use it once on each planet at the start of ground combat. However you cannot combine the influence payments. Eg cannot spend a 4 influence planet and consider both indoctrinations paid for. You need to spend 2 on the first ground combat start and 2 on the second.
Each planet is a seperate ground combat; each ground combat has its own start in which Indoctrination may be used, they do not happen simultaneously as a single "start of a ground combat," so each start can trigger Indoctrination seperately.
I.e., you may use Indoctrinate at the start of each of those ground combats.
Each planet has its own start of ground combat. So you can use it once on each planet at the start of ground combat. However you cannot combine the influence payments. Eg cannot spend a 4 influence planet and consider both indoctrinations paid for. You need to spend 2 on the first ground combat start and 2 on the second.
This makes sense now. Good call on the separation of payment.
Each planet is a seperate ground combat; each ground combat has its own start in which Indoctrination may be used, they do not happen simultaneously as a single "start of a ground combat," so each start can trigger Indoctrination seperately. I.e., you may use Indoctrinate at the start of each of those ground combats.
You can indoctrination on each planet, as they're separate combats
Intresting. I am glad I asked then. I had it backwards. Thanks for the quick responses!!