Earth United Nations Military Base

Hello everyone,
The war between the E.U.N. (Earth United Nations) and the aliens has been going on for decades and brought humanity on the brink of extinction. While wars ravage the Earth, E.U.N has sent people to explore and settle colonies on other planets.
Here’s a concept of an E.U.N. military base on a distant planet.
Danger is lurking around the corner.
Thanks for viewing. Stay tuned for more concepts.