Malaysia is a federal constitutional monarchy in Southeast Asia, uniquely featuring a rotating monarchy among its state rulers (currently Sultan Ibrahim Iskandar of Johor as king) alongside an elected parliamentary government led by Prime Minister Anwar Ibrahim of the People's Justice Party. Straddling Peninsular Malaysia and Borneo, it is a founding member of ASEAN and balances close trade ties with China against security and economic links to the United States and Western partners. Key fault lines for news readers include competing claims in the South China Sea, internal ethnic and religious dynamics among Malay-Muslim, Chinese, and Indian communities (and the bumiputera affirmative-action framework), and a fluid coalition politics that has produced repeated changes of government in recent years.