The US needs to forget nearly everything it has learned from fighting in the Middle East, the trainer told Business Insider.

An American veteran serving in Ukraine said the US needs to prepare in a few broad ways. He told BI the US needs to forget about the Middle East wars and focus efforts on air superiority.

Special Forces members deployed around the world training foreign militaries and sometimes on more quiet, classified operations. However, combat was very rare for these troops.

This impressively readable account chronicles the role of the U.S. Army's Special Forces (aka the Green Berets, a label they do not care for) over the past 15 years.