Gate: Džieitai kanoči nite, kaku tatakaeri

When a mysterious gate suddenly appears in Tokyo's Ginza district and begins spewing armed warriors and flying monsters, the world is thrown into turmoil. Although the deadly attack is thrown back by Japan's Self Defense Force, there's now a new and entirely unknown land on the other side of the portal, and Japan is effectively at war with a nation on the other side. Determined to secure peace, the JSDF must send an armed force into the Gate, but ogres, dragons and a ruthless Empire populated by elves, humans, and half-animal warriors aren't the only dangers they'll face. With the resources of two worlds at stake, the balance of power on both sides of the Gate is destabilizing, and betrayal can come at any time, from any quarter. Officer Youji Itami and the JSDF's Third Reconnaissance Team must find a way to persevere & bring peace to the two nations. (Sentai Filmworks)