Paa, the requirement for the army is really strict, the requirement says you must not be more than 25yrs by 31st December 2014 so because of that, you cannot apply. Except of the requirements are below
GENERAL ELIGIBILITY - Ghana Armed Forces.
1.Eligible applicant must:
a.Be a Ghanaian citizen by birth.
b.Be of good character.
c.Be not less than 18 years and not more than 25 years by 31st December, 2014.
d.Be medically fit by Armed Forces standards.
e.Be not married.
f.Be not bonded.
g.Be of minimum height of 1.68m (5’6”) for males and 1.57m (5’2”) for females.
For Military Police only; be of a minimum height of 1.75m (5’9”) for males and 1.70m (5’7”) for females.