Ambassador to Aliens?

If aliens ever came here, they would be directed to this ambassador for aliens. Considering these aliens as another state with culture, and not simply dismissing them as extraterrestrial creatures, is establishing an ambassador for them a helpful move to the states of the Earth?

Taking a realist approach to this issue, appointing an ambassador is not necessary, because instead of trying to establish a friendly relationship with the aliens, it is better to be prepared militarily to secure the survival of the states against these unknown extraterrestrial creatures once they come. However, considering the situation, it is possible that a ambassador for aliens can be beneficial to the states from a realist point of view. Because there have been no previous contact between the Earth and aliens, there is no way states can evaluate these creature's capabilities and intentions. Once the information necessary to make the assessment becomes available, then a realist approach would devaluate the importance of an ambassador and the position can be eliminated; however, ambassadors can still serve a purpose for realist international relations approach. It applies to both unknown and known states in the sense that these ambassadors can continue feed information back to their homeland. Their information would be limited in number of ways, but nonetheless, they can supply information for future assessments.

The important aspect of realist approach to the position of ambassador is that ambassadors are not necessarily an instrument to promote diplomatic ties and friendship. Instead, it serves to be the connection between the aliens and the states through which information travels in both directions. Therefore, in a state where there are no knowledge available about each other, it might be helpful to have an ambassador; however, once knowledge about each other becomes available, realists can use these information to take appropriate measures. A prime example is during the Cold War, the US and USSR both established their embassies which served to be somewhat of a center of clandestine service to secure information. Countermeasures were taken and surveillance on embassies became important. This shows how embassies and ambassadors can play prime role in intelligence gathering.

To sum it up, for a realist, a position of an ambassador is not necessary in this case; however, it could serve a realist purpose very well by serving as a source of primary information to assess these aliens until other intelligence gathering services have been established.