U.S.-Philippines military drills The Philippines and the U.S. will begin their annual Balikatan joint military U.S. bases New U.S. bases Apr 11-28: "Shoulder-to-shoulder" Balikatan drills will include 111 Australian troops and Japanese observers CHINA Hong Kong Zambales: U.S. and Philippine frigates will conduct live-fire exercises. U.S. will use HIMARS rocket system to sink mock enemy ship 185km from Scarborough Shoal, seized by China in 2012 Paracel Islands Scarborough Shoal VIETNAM SOUTH CHINA SEA Basa Airbase Palawan: Amphibious landing close to disputed Spratly Islands Spratly Islands China's "nine-dash line" maritime claim MALAYSIA BRUNEI Taipei TAIWAN Simulated defence of island 300km south of Taiwan PACIFIC OCEAN Cagayan Isabela LUZON Fort Magsaysay Manila PHILIPPINES Antonio Bautista Airbase Sulu Sea MINDANAO Celebes Sea Mactan-Benito Ebuen Airbase Lumbia Airbase Sources: Armed Forces of the Philippines, Reuters © GRAPHIC NEWS