Philippine, U.S and Australian Special Operation Forces (SOF) climb a ladder into a MH-60 Seahawk as part of a helicopter assault training event during exercise Balikatan 2016 at Puerto Princessa, Philippines, April 8, 2016. Multi-lateral SOF training events during exercise BK 16 are geared to reinforce relations, enhance asymmetric capabilities and improve interoperability of partner-nation forces. (U.S. Marine Corps photo by Sgt. Ethan T. Johnson/Released)