Pacific Island leaders are pushing back against the rising geopolitical jousting between big powers in their region by barring international development partners, including the U.S. and China, from their annual summit this week. Beginning Monday, Solomon Islands Prime Minister Jeremiah Manele will host this year’s five-day meeting of leaders from the 18 Pacific Island Forum member countries, including Australia and New Zealand, in his country’s capital, Honiara. On the agenda will be topi...