Originally posted by Zachriel
The formula I stated is for the current patch.
In any case, how many overlapped tiles were there? I am assuming that this was a recently conquered city as you had a fairly large army stationed there (36 units). If the city was in resistance, then you would need a much larger army. Lacking sufficient garrision, you would be better off stationing your troops outside the city in question.
The city was no longer in resistance, it was after the third turn of having the city and just finished rushing the temple with my hard earned cash. Close the their other major cities but about 10 squares from the capitol.