by techgump » Mon Oct 24, 2011 11:37 pm
It does two things. But first, you must understand the initial mechanics. By default (no added reinforcement improvements):
1. You may only reinforce with up to 20 men at turn's end, assuming you have 20 or more properties (or extra men from previous turn in queue as explained in point 2).
2. If you have filled all your properties with 8x, then remaining units are stored for next turn in the queue, which is limited to 20.
Adding reinforcement upgrades increases both of those numbers by 10. If you are expected to get 18 men with only 8 properties at end-turn, this wont happen. It does not give you 10 free men at end of every turn. It merely lifts the 20 caps to 30, then 40 for the second upgrade.