How many years is the Military IRR?

Question

how long are soldiers in the IRR

Answer 1

You must serve a total of 8 years.  In the Army, 3 years active is the least amount of time you can spend active duty before getting out and going on IRR.  I served 4 years active, so I owe 4 years IRR.  If you spent 3 years active, you owe 5 years IRR.