sentences:  Later, in the early 1890s, more serious moves would be taken to garrison the island as part of a concerted effort by all six colonies to protect a number of strategic points around the Australian continent.Queensland's part in this was to contribute financially, along with Western Australia, New South Wales, Victoria and South Australia, to the purchase of the three 6-inch guns that were installed on the island, and also to provide the 30-man garrison from their permanent artillery force.Throughout the early 1880s it became apparent that the volunteer system was not effective in meeting the colony's defence needs.