Curb-Stomp Battle: Happens quite routinely to new members of the Interstellar League of Tribal Chiefdoms, many of whom explode off their worlds with a tremendous sense of hubris as yet unblemished by a realistic threat assessment of current galactic civilization.  This attitude is, ahem, corrected quite swiftly.

For example, this is going to happen to the Trikhad Conquest Real Soon Now.