This is a sad and eerie film, in some ways similar to those of Godfrey Reggio. Werner Herzog and a camera crew toured Kuwait and environs in the wake of the Gulf War and documented the destruction (both physical and human) wrought by Saddam Hussain's armies in the oil fields and by the bombing of strategic targets. But instead of presenting a straightforward story about a historical event, Herzog created a science-fiction parable. The entire movie has a strange, detached tone; we see horrendous destruction, rooms full of torture equipment, and victims of brutality, but there are no cinematic clues about how the 'aliens' who supposedly made this movie feel about these things; their attitude is implied rather than stated. There is no need to play up the events; seeing them is enough.
"Fata Morgana" is similar in some ways, but it is more disconnected and humorous, portraying another trip-- this time through northern Africa. And, like "Lessons of Darkness", it manages to portray Earth as a particularly weird planet. An especially interesting point is Herzog's commentary about the mirages that he filmed; we can see that there is a bus (for example) in the distance, but Herzog tells us that when they went to the place where the bus should have been, they could see that there was nothing for miles around... "Fata Morgana" is not as cohesive as "Lessons of Darkness", but its tone is much lighter.