If the anime was never completed, Then you're in luck. You can continue the story by reading the completed manga. This list has basically the same rules as a couple of my other ones, includes anime originally based on a manga, no...
These animes are reboots or remakes from another anime.
"realistic" military animes; meaning as realistic as anime gets anyways.
Arab / Middle-Eastern based anime which has some themes, characters and plots related to the culture and environment, including neighbouring regions.