Identify this battle (from the original Star Wars)

and connect to the event depicted in this painting.

Cracked by: Abid , Prasad , prasanth , varuns88 , Tathagata Chatterjee , akhi , Dibyo and udupendra.

Abid, Prasad, prasanth, varuns88, Tathagata Chatterjee, akhi, Dibyo and udupendra