Force Choke

Force Choke is a technique used in the Star Wars universe, most often by Sith - it involves using the Force to create an invisible ring of energy around a victim that proceeds to choke the life out of them akin to telekinesis.

It is most famous for being used by Darth Vader himself to enforce fear in his underlings, it has also been used by many other Siths and although he never used it in the original films the Sith Lord, Emperor Palpatine no doubt knew this technique as well.