Following the Martian invasion, in which humanity only escaped extinction by a twist of fate, the world was rebuilt. But humanity never forgot that a 2nd invasion might come.
And so A.R.E.S. the Allied Resistance Earth Squadron was formed. An elite fighting force made up of brave men and women from around the world. Not serving any one nation, it’s sole purpose was to defend Earth from any alien threat.
To equip them, martian technology was reverse engineered. Though humanity couldn’t fully replicate their war machines, A.R.E.S was equipped with weapons far ahead of anything humanity would had otherwise.