Star Trek: Deep Space Nine was always known as the darker version of Star Trek when compared to the other projects released at the time. "It's Only a Paper Moon" was the show's 160th episode, and dealt with themes that few shows at the time handled. While war has always been a part of the Star Trek franchise, no other series has dealt with it to the same extent that Deep Space Nine did, showing the ramifications of certain actions and the mental toll that battle can take on a person.