The Sea Cadet Corps (SCC) forms the UK's largest Naval Cadet Force with over 30,000 cadets and adult volunteers. The SCC is a nationwide voluntary youth organisation; open to young people aged 12 to 18. Junior Sea Cadet sections, are open to young people aged 10 to 12 years of age. Those aged from 12 and 6 months to 18 may also join the Royal Marine Cadet Detachments (RMCD), as Royal Marine Cadets. Whilst the SCC is not a pre-service organisation, a significant number of former Sea Cadets and Marine Cadets do go on to join the Royal Navy, Royal Marines or other sections of the Armed Forces.