Prologue: The Gate.

A gate has appeared in Moscow, Russia on Victory day of the Soviet Union. What came out of the gate was something bizzare and out of place. A Roman army along with dragons and creatures of mythology attacked the people of the Soviet Union.

The Red Bear has awoken and it craves the blood of the Sadera Empire. (On Hiatus) (Possible Rewrite)

(WARNING: Dark Themes)
(I don't own GATE:Thus the JSDF fought there)