Upvote:3
Here is what you need to apply:
From 11 July 2013 the Ministry of Defence requires all Commonwealth nationals seeking to enlist in HM Forces to demonstrate that they have lived in the UK with valid leave for a minimum of 5 years immediately prior to commencing the recruitment process.
The only exceptions to this requirement will be those individuals who hold evidence from the Ministry of Defence dated prior to 11 July 2013 of either:
- a written valid job offer,
- confirmation of a training place,
- a confirmed date to attend an assessment centre, or
- a confirmed date to attend a psychometric test (RAF and Navy only).
Applications from those seeking entry to the UK solely on the basis that they are either seeking to commence or progress through the recruitment process will fall to be refused unless the residency requirement is met. For example, students who have previously held lawful leave and studied in the UK for over five years but have recently returned home for a short holiday may qualify if they have obtained one of the documents outlined in the above paragraph whilst in the UK.
(Source)