The Australians carried out a wide envelopment , reaching the sea on 16 January , but the 163rd Infantry remained confronted by Perimeters S , T , and U .
These were not immediately located .
The Australians carried out a wide envelopment , reaching the sea on 16 January , but the 163rd Infantry remained confronted by Perimeters S , T , and U , although these were not immediately located .