10 Most Annoying Unanswered Questions In Star Trek

5. Who, Where, And When Were Involved In The Temporal Wars?

Broken Bow introduced the Temporal Cold War, a great series of conflicts that were fought through time. Over the course of Star Trek: Enterprise's run, the audience was teased with more information, as well as future guys and space vampires, but the fighting was never shown on screen.

Jumping ahead, fittingly, to Star Trek: Discovery's third season and beyond, it was revealed that the Temporal Cold War gave way to the Temporal Wars themselves, culminating in the Temporal Accords - banning time travel forever. While that made the USS Discovery's existence in the 32nd Century a bit of a problem, it was a frustrating way to summarise the topic.

We know Agent Daniels was involved. We know the Guardian of Forever (more on that later) was involved. We know the Na'khul were involved. We know the Suliban were involved. We know the Sphere Builders were involved. After that, it becomes murky. How, too, does one fight across time? Would every battle undo any previous combat? How can anyone actually win a Temporal War? 

It remains one of the most interesting, and least defined, conflicts in Star Trek's long history.