I have been deeply involved with the defense of Earth and all kinds of other planets and realms for quite a few years.  It is my experience that there really is some sort of IPJE - Intergalactic Peace and Justice Enforcement.  This colored pencil painting is of a three person patrol vessel capable of light speed.  Hopefully, it is obvious there are IPJEs at other levels of capabilities.

I had a blast learning and figuring out how to do this.  I am now working on others.