.... 16? off the top of my head, i've seen variations between 8-26 (or more?) so far
it's easier.. insofar as there are relatively fewer zones and you simply have to wait another turn.
has anyone done a landing yet? afaik, it doesn't matter how big your army is... you are rolling individual units against militia. + walls.
forget donuts. you land in rurals just outside where there are no walls or troops normally. you might lose a turn or 2.. but you keep your army fairly intact... i guess.