Senkou no Night Raid, Gosick Recommendations
Both Anime deal with the World Wars. Both have a Gothic style to them. Both deal with things outside of the characters hands despite the fact they try to stop the dark events from occuring.
Western style and old~fasioned.
History buffs, especially those fascinated with the tumultuous years between the two world wars, will come to love (or at least appreciate) that which Gosick and Senkou no Night Raid bring to the table. These two anime tell fascinating fictional tales rooted in history, both starting off with somewhat episodic and seemingly unrelated cases/missions that all tie together and culminate into an overarching, global plot.