In times of crisis, countries rely on their Army, Navy and Air Force. Personnel can work in a wide range of roles, from combat to information technology to mechanics to chaplaincy. Required qualifications and salaries also vary. An aeronautical engineer in the Navy, for example, earns about $32,000 a year in their first year of training but after four years and graduation, this jumps to about $76,000 a year, or $90,000 including extra allowances. Applicants can complete their degree through the Australian Defence Force Academy or join the Defence Force already qualified, such as with a Bachelor of Engineering (Honours) (Electrical and Aerospace). Another option is to spend a gap year with ADF to get a taste for the job without committing beyond 12 months. Those that stay on as infantry soldiers in the Army, for example, can earn as much as $61,000 a year, including salary and allowances.