I'm applying for Army ortho residency right now. My understanding is you either have to be on HPSP scholarship or USUHS student to get a spot. For this year, the Army applications are due on 15 Oct, this Sunday.
The Army has their own web site that requires forms to be filled out, then all applicants also do an ERAS application. The military match is 15 Dec, if I don't get a spot on the military match by already having ERAS done I will go directly into civilian match to try to get a spot as a civilian.
lemme know if you have any questions. Are you on a military scholarship?