At the earliest, sixth-generation fighters may crop up in the 2030s or 2040s—by which time concepts in air warfare will likely have evolved yet again.

Sébastien Roblin holds a Master’s Degree in Conflict Resolution from Georgetown University and served as a university instructor for the Peace Corps in China. He has also worked in education, editing, and refugee resettlement in France and the United States. He currently writes on security and military history for War Is Boring.

This article first appeared in July 2018 and is being reprinted for reader interest.

Image: Reuters