Australia’s weekend intervention in the Solomon Islands highlights the importance of the Pacific Islands to Australia’s national security, as well as the complex challenges Canberra will face in asserting itself in a region where local issues are so often intertwined with great power competition. Nearly 100 Australian Federal Police and Defense Force personnel arrived in the capital of the Solomon Islands on Nov. 26 at the request of the government after peaceful protests turned violent and overwhelmed local police forces. Protesters -- predominantly from the more populous but less developed Malaita Island -- called for Prime Minister Manasseh Sogavare’s resignation and attempted to storm his compound. Demonstrators also set fire to several government and police buildings, as well as shops in the city’s Chinatown. ...