Chula, aka Sozar, is the home-world of the Sozarians. The high gravity world is only safe for short term exposure to most sentient races, with the exception of the Sozarians and the non-biological Zard and Modrons.
Chula is deceptively normal in appearance, approximately one third of the planet is forested landmasses and the remaining two thirds ocean covered. The first Moretti military-explorer expedition nearly came to grief assuming the planet was not a high gravity world.
The two primary continental landmasses each house one of the two competing (but not warring) Sozarians nations. The Sozarians also possess an often overlooked blue water navy expertise and history which is overshadowed by their modern preference for space craft and zepplins. Both zepplins and boats being less susceptible to high gravity than expected due to the effects of buoyancy.
Sozarians have no natural predators other than disease, of which Chula has several including three which which cause death by weakening the Sozarians‘s physical resilience and rendering them vulnerable to the crushing gravity of the planet. It is suspected that these forms of ’invisible death’ in the formative stages of the Sozarians race is a contributing factor to their ideology that all things are alive and also attempting to destroy them. Also the quick development of science, medicine and technology by the Sozarians.