At this point, Commander Minoru Yano, who had arrived with the Japanese reinforcements on 29 August, took over from Hayashi, and after the survivors of the attack had reformed in the dead ground around Poin Creek, he led them about north of the airstrip in an attempt to outflank the 61st Infantry Battalion's positions on Stephen's Ridge.
32.
In practice, even the revised design ignored the acute-angled bastions which had been introduced in Europe, the round towers creating numerous patches of dead ground around the castle into which its guns could not fire; the high walls presented a greater target, the internal design was complicated and it remained difficult to move around inside the fort.
33.
The forts on the defensive line were designed with a dual land / coastal defence role in mind, particularly the ones at the extremities but, due to the topography in the northern part of the island, there were areas of dead ground along the coast and inland approaches which could not be properly covered by the guns in the main forts.