Star Wars: A New Hope 1977 Release Order.
Star Wars: The Empire Strikes Back 1980
Star Wars: Jedi Counterattack 1983
Prequel trilogy: Ghost Threat 1999
Prequel trilogy: The Clone Wars 2002.
Prequel trilogy: Revenge of the Sith 2005
Star Wars: The Force Awakens 20 15
If you want to see it, you must watch it in the order of release.