Organisations in the defence, armed forces and rescue category include services and establishments connected with the British Army, Royal Navy and Royal Air Force, as well as organisations involved in search and rescue. They protect the UK and its interests, support international operations and provide military capabilities on land, at sea and in the air. Members of the public may encounter recruitment and careers offices, reserve units, training establishments, museums or public information services. Rescue services locate and assist people who are missing, stranded or in danger, including at sea, in remote areas or following accidents and disasters. Depending on the organisation, activities may include emergency search and rescue, maritime or mountain rescue, casualty evacuation, disaster response and support for other emergency services. Some services are provided by military personnel, while others rely on civilian staff and trained volunteers.