Is Intention a sankhara?

I would like to know if the following premises are well stated and if their content is true. Also, I'd like to know if the conclusion/answer makes sense: 1) In the aggregates, 'sankhara' are kammic formations. 2) Kammic formations are any phenomena that have an underlying intention, and therefore create new kamma. Question: Is intention (cetana) a sankhara? Thanks in advance for your time. Kind regards!