It's optional to give this information – you don't have to let the university or college know if you don’t want to. However, we recommend that you do, so they can understand the context of your achievements and make sure you know about any support that can help you during your studies. Even if you don’t feel you need any extra support now, you may feel differently later on.
Either way, don’t forget you can use the UCAS personal statement to highlight how your experience may have helped you develop unique skills and strengths that you'll be able to transfer to your studies. To help with this, the Service Children’s Progression Alliance (SCiP Alliance) has created some guidance to help you write about this.