Triforia is a planet in the same galaxy as Aquitar.
The Triforian best known to the people of Earth is Trey, their ruler at the time of the Zeo Rangers. As he said to them, "We are a race of great peacekeepers who often travel to other planets when there is a need to do away with evil." As a spacefaring race, they consider themselves responsible for protecting not only their own planet, but others. Their rulers often set the example by taking up Ranger powers and going to war. This was especially necessary when the Machine Empire had conquered nearly all of the technologically advanced societies in the known universe.
The Triforians' sense of responsibility has often come across as meddling to people of other worlds. In the time of interstellar peace following Zordon's energy wave, Trey led his people in reconsidering their stance.