Hello ladies and gentlemen, I am a specialist in the PAARNG currently serving in Iraq as a line medic for a Calvary Scout Recon, Surveillance and Target Acquisition platoon. I'm working on my medical school applications whenever I get the chance to get online here (not all that often) and one of the schools I would like to apply to is USUHS, however I have never heard of the "Letter of Approval to Apply". How do I get this letter, is it through my direct chain of command (Captain? First Sergeant?) or where do I apply for one?