If you liked the Zero no Tsukaima: Futatsuki no Kishi anime, the Anime-Planet community thinks you'd like:
The Nation of Gallia has always remained neutral in conflicts and has only gone to war to defend itself. However, as war flares between the East Europan Imperial Alliance and the Atlantic Federation, Gallia is soon targeted for its abundance of ragnite ore, a versatile and hugely valuable material. The Civilian Militia is soon called into action, and Welkin Gunther - son of a legendary war hero - is named leader of Squad 7. Under his command are the headstrong and practical Alicia Melchiott; the sharp-tongued Brigitte Stark; the grizzled veteran, Largo Potter; and Welkin's adopted sister Isara, whose Darcsen heritage means she faces prejudice, even from members of her own squad. With the rest of Squad 7 and the mighty tank Edelweiss, they must do their best to defend Gallia.
both Valkyria Chronicles and Zero no Tsukaima: Futatsuki no Kishi are set in a war time era and have as main protagonist a strong female character and a unique and protective male character.Even so this two have many differences the things mentioned above make this two seem quite alike so if you like one of this two then you might like the other one as well.