I want to know the answer to the following question:
What is one primary role of the Canbera-class LDH?
All the background I'm provided with is that "The Royal Australian Navy is in the process of procuring two Canberra-class LHD's, the first of which was commissioned in November 2015, while the second is expected to enter service in 2016.". Is that enough to answer the question?
Answer: no