these seem to be one of the toughest clans to start with, just had a few go's and found that if u just train troops and then go and attack the clan u start at war with u will get beaten as they have a dojo and plenty of yari kachi which mince up your early game modern troops, so restarted and let him come to me which he eventually does. beat him and then nip up and take his town, i found this take's a quite a few turns to get the first additional province, also the island you start on is pretty unproductive in terms of farmland and decent resources, anyway, i had my two provinces finally stable when at about turn 19/20 4 or so clans declare war on me and iwakuni turns up in my starting province which has sparse troops as they are still all in the other province with a 3/4 stack naval invasion!! i left it at that so if anyone has any ideas id be most interested