Data Dump: Estimating Keroro Gunsou Age through Rank.

Okay, so one of the things that has been bothering me with a lot of the Keroro Gunsou art I'm seeing is how young people draw the Keron characters as humans. I deal with the military (mostly Air Force) on a daily basis at work and the ranks/ages/apperances weren't matching up.

So. Data dump. And it doubled as homework to better understand the ranks I'm dealing with everyday.
Used US Army and USAF because Keroro Gunsou says they're Army, but I needed the USAF equvialant to comprehend, and Space usually falls under USAF anyway. (hello, Stargate...)
And there is jack-all on the interwebs for understanding non-english military structure. :p

( Begin! )