Philippine navy Vice ADM. Alexander S. Lopez, fifth from the right, commander of Western Command of the Armed Forces of the Philippines and U.S. Marine Corps Lt. Gen. John A. Toolan, sixth from the right, commander of U.S. Marine Corps Force, Pacific, pose for a photo shoulder-to-shoulder with U.S. and Philippine service members after observing the execution of an amphibious landing by the Joint Rapid Reaction Force (JRRF) to seize a scenario-based objective as part of Exercise Balikatan 2016, in Antique, Philippines, April 11, 2016. The JRRF, compiled of U.S. and Philippine forces, have worked together during the exercise to test their capabilities, maintain a high level of interoperability and to enhance combined combat readiness. Balikatan, which means "shoulder to shoulder" in Filipino, is an annual bilateral training exercise aimed at improving the ability of Philippine and U.S. military forces to work together during planning, contingency and humanitarian assistance and disaster relief operations.