Special Duties Branch (Photography) and Administrative and Special Duties Branch (Signals), with no dedicated Air Intelligence specialisation. In 1965, the three service intelligence departments were amalgamated in the new Defence Intelligence Staff at the Ministry of Defence. Training at the RAF Intelligence School continued until 1969, teaching non-specialist Officers (GD and Administrators) the basics of Intelligence. The role of Squadron or Station Intelligence Officer was filled by members of the Administrative Branch as a sub-specialisation. On 2 August 1969, the RAF Intelligence School was officially closed and intelligence training was transferred to the School of Service Intelligence (SSI) at Ashford, Kent. In the 1950s the Photographic Interpretation (PI) Branch was formed for commissioned officers to be employed at the reconnaissance intelligence centres attached to aircraft units, and also to work at the Joint Air Reconnaissance Intelligence Centre (JARIC) at RAF Brampton. By the start of the 1990s, the RAF could see the benefit of an independent Intelligence Branch, creating the GD (Intelligence) Branch. They required more information and warning on the potential enemies around the world in order to maintain the diminishing RAF's ability to react. In 1997, GD (INT) became the Operations Support (Intelligence) specialisation that is in existence today. However, training for officers focused on imagery analysis with general intelligence being taught at Ashford on a three week course at the Defence Intelligence and Security School (DISS), the renamed SSI. The first professional Air Intelligence course (RAF Intelligence Course - RAFIC) was run in the Air Intelligence Wing of DISS in 2000, following the school's move to Chicksands in Bedfordshire. After the first two courses, the Royal Navy was invited to send officers to attend and the course was renamed the Joint Air Intelligence Course (JAIC). In 2005, DISS became part of the Defence College of Intelligence and the Air Intelligence Wing was renamed Horus Training Delivery Wing. Following a re-organisation in 2007, the structure was changed again and the Defence School of Intelligence (DSI) was set up with Air Intelligence Wing as a sub-organisation as the Phase 2 training unit (professional specialist training) for all RAF Intelligence Analyst Airmen, RAF Intelligence Officers, plus as a Phase 3 training unit (Continuation Specialist Training) for RAF Intelligence Analyst NCOs and Royal Navy and British Army Officers employed in air intelligence duties. Training Entrants to the specialisation undertake common training at RAF College Cranwell for officers and RAF Halton for