picking up troops after ground combat

[Suicide Junkie]

I thought that multiple transports wouldn't work - all the militias would come back so if you didn't take them over the first time and they had no Troops then you couldn't take them over with a second transport either...

The militia only come back if ALL of your troops are killed. If your troops happen to have enough shields to survive the first 10 rounds of ground combat, the reinforcements can arrive without the militia being refreshed.