Japan Ground Self-Defense Force Service Members disembark from an MV-22B Osprey with U.S. Marines while conducting Vertical Assault training during exercise Forest Light Western Army at Camp Takayubaru, Kumamoto, Japan, Jan. 28. - Japan Ground Self-Defense Force Service Members disembark from an MV-22B Osprey with U.S. Marines while conducting Vertical Assault training during exercise Forest Light Western Army at Camp Takayubaru, Kumamoto, Japan, Jan. 28.