World Witches Take Off!

Twin stories intertwine, following both the 501st and 502nd Joint Fighter Wings, the Strike Witches and Brave Witches, respectively. Concerning the Strike Witches, Gertrud "Trudy" Barkhorn is assigned by her superiors to direct a film focusing on the heroic military life of Yoshika Miyafuji, as the said Miyafuji attempts simultaneously to reunite the members of the 501st who were scattered after the victory against the Neuroi. Meanwhile, the Brave Witches, preparing their own reunion with ace fighter Takami Karabuchi, must instead train her sister, Hikari, who is new to the battlefront, at their base in St. Petersburg. Told with a humorous undertone and more exaggerated animation, exactly like its prequel, this pair of helical storylines conclude with both units meeting in their full complement.

Synopsis from Anime News Network