"We value your previous service, and if you're thinking of coming back, there's a job waiting for you. If you have served in the Regular Army, you can return to full time service even if you left under the Armed Forces Redundancy Scheme. There are also opportunities for personnel from the other services to join the Army.
What's the age limit to rejoin?
Rejoiners can start the application process as long as they enlist before their 57th birthday."