SYDNEY, Sept 2 (Reuters) - Australian police will stay in the Solomon Islands to provide security for a regional sporting event in November and national elections in 2024, the Pacific Island nation's government has said. The number of officers will increase before November's Pacific Games, when 5,000 athletes from two dozen nations are expected to arrive, according to a statement on Solomon Islands Broadcasting's Facebook page posted late on Friday. China, which has also stepped up its policing cooperation with the Solomon Islands, donated and constructed the Pacific Games stadiums. The island nation made a formal request to Australian Prime...