Lesson Learned

The spacecraft appeared above the most densely populated area and began to broadcast a series of tones across multiple bandwidths.

While most of the various governments began to get scientists to try and translate, the more aggressively minded country leapt to a conclusion and fired nukes upon them.

It easily withstood this, then transported the entire region up to their craft and left.

Two hundred years later, a similar craft arrived, where it was instantly attacked by the global empire that had learned the lesson that aggression was rewarded.

Until they discovered what the craft had done with those people.