I haven't been able to find the numbers, and I've looked when I've had the chance. I'll look again, but after that we'll have to just wing it.

Edit: Call it 327,000 and a much larger number of reservists. Four major military commands, 1-4th Army and assorted independent units. There is also a federal police in there that is militarized. 

A large part of the military's enlisted are conscripts on a short term of service, which is a standard of the era; one or two years of service and then time in the reserves.