Entrus, a planet located within the Trax sector, was a temperate world characterized by its numerous islands. The planet's hundreds of islands became home to many gambling resorts, which led to the construction of underwater cities and repulsorlift platforms that populated both the oceans and the skies above. These cities were heavily populated and featured entertainment complexes that often reached heights of hundreds of meters. The Alliance to Restore the Republic's Trax Sector Command for the Trax sector was also located on Entrus. This base was staffed by a small contingent, consisting of fewer than 25 strategists and planners.