Afghanistan and Iraq can not be left again. They like future cases are de facto American colonies.
The improved relations between Turkey and both Israel and Russia are good examples of future foreign relations, opportunistic and personalized.
You are enemies till you suddenly become friends.
You have a friend till you break up.
You have a point of view till you take another.
Some Republican members of Congress want Hillary Clinton brought before court because of the email-affair in order to help a clown to gain the presidency. With such a level of politics the Unites States can only become the greatest country on an earth void of real adversaries.