Gjallarhorn's Thunder Ginga Eiyuu Densetsu : Season 2 Episode 17

Reuenthal plans a war of attrition against Iserlohn. Reuenthal sees the Hyperion, Yang's flagship, emerge from port and decides to rush his fleet to destroy the Hyperion. However this is a feint and the Rosen Ritter led by Schenkopp latch on to Reuenthal's flagship and engage in combat. The battle is a draw and Schenkopp eventually withdraws. Reuenthal returns to his plan of attrition by rotating his attack forces in small groups. December 9, 798 S.C. / 489 I.C.: Part two of Operation Ragnarok launches from the Empire homeworld.