 If you liked
Senjou no Valkyria
|
 ...then you might like
Girls & Panzer
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Though a bit different for Girls und Panzer is a bit lighter, sweet and features younger characters while Senjou no Valkyria, or Valkyria Chronicles in English, is more serious and features older characters, both shows can give you the action and enjoyment that you're looking for with some drama included.