The prime minister of Tonga, Fred Sevele, should resign. It was his inept handling of the inevitable transition from autocracy to democracy which led to the rioting. The king also bears responsibility and he should be stripped of most of his powers. This will happen eventually and it will be up to the king to decide how much more property has to be destroyed and lives lost until it happens. If Australia and New Zealand wish to spend their money defending their interests in Tonga, fine. But they'll just be throwing their money away and creating longterm instability if they try to prop up the old order. Once democracy is installed, there should be an investigation into the business holdings of the royal family and how they were obtained. I'll bet a lot of back taxes could be collected to repair some of the damage done during the rioting.