Human beings are sadly violent creatures. Throughout history what is remembered most are wars and battles, the fight for glory. The wars in the middle east will go on forever until everyone is dead, there's no other way it will stop. Afghanistan, same problem as are many parts of Africa, Asia, and even the Americas.

Wars usually happen when one leader sees an easy way to take more power, i.e. Putin in Ukraine. It backfired on him due to having too many "yes" men in his organization. The lust for power and money are the roots of war, and as humans it can't be eliminated, as sad as that is.