Cant Maintian my military (Little Upsilon)

I keep getting this message on my daily telegraph

Populos unable to maintain its army.
Populos does not have enough staff for its army. Insufficient maintenance caused 10 percent of the of the SF units to be moved into the reserves this month.

How do i increse the staff for my military, I have raaised salaries, etc. Could someone help me please

Check the "education priorities" page. Departments-->Education-->Education Priorities

If you raised salaries for government workers and still have military staffing shortages after a few months, it is likely that you have a shortage of low-level workers, medium-level managers, or both.

If the shortage is in medium level managers (i.e. officers) increase the education priority for them. Over time, more medium level managers will be trained and able to join the officer ranks. It helps if you have a decent educational system, too.

If the shortage is in low-level workers, try to find countries to do workers exchanges with, to trade surplus workers groups for low-level workers. If you play on Little Upsilon, as I am inferring by the (Little Upsilon) next to your screenname, I recommend trading workers with Country Trust B, Country Trust E, Country Trust G, Country Trust I, or Country Trust J. I find

Well probrally this reasons should tell you why you can't maintain your military.

ECONOMONY, That's right ECONOMY.
Let's sing the Econ song/rap.

Economy Economy OH YES!!!!! Economy.
(End)