A detachment of the NSW Corps is despatched to the Green Hills after skirmishes between the Aborigines and settlers. Governor Paterson fears that the settlers might abandon the settlement entirely and give up the most fertile spot yet discovered in the colony. By 1799 barracks are built and housing for the commanding officer of the military. By 1799, over half of the cultivated land in the colony is on the Hawkesbury. (Nichols p10)