The Sea Cadet Corps (SCC) is a national youth organisation sponsored by the United Kingdom's Ministry of Defence and the Royal Navy. The SCC is the United Kingdom's largest naval cadet force, with over 19,500 cadets and cadet force adult volunteers. Cadets follow similar rates and ranks, traditions, values and ethos as their parent service, the Royal Navy and the Royal Marines. Whilst the SCC is not a pre-service organisation, a significant minority of former Sea Cadets and Royal Marines Cadets do go on to join the Royal Navy, Royal Marines and other branches of the British Armed Forces.