Girls und Panzer: This Is the Real Anzio Battle!

Girls und Panzer: This Is the Real Anzio Battle! is a 2014 Japanese original video animation (OVA) directed by Tsutomu Mizushima from a script written by Takaaki Suzuki. Produced by Actas and distributed theatrically by Showgate, the OVA stars Mai Fuchigami, Ai Kayano, Mami Ozaki, Ikumi Nakagami, Yuka Iguchi, Maya Yoshioka, Misato Fukuen, Mikako Takahashi, and Kana Ueda. Set after the seventh episode of Girls und Panzer (2012), the OVA follows the full tank match between Ōarai Girls' Academy and Anzio High School led by Anchovy (Yoshioka).

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.