If you're talking about this program:
"The mission of the United States Army Practical Nurse Course is to educate and prepare highly trained battlefield medics, Sergeant and below, whose primary MOS is 91W or 91WY2. The 91WM6 (Practical Nurse) coupled with Health Care Specialist (91W) training, possess the skill set to provide first line trauma care far forward on the battlefield, perform as members of Forward Surgical Teams, and function in expanded and support roles in Combat Support Hospitals and fixed medical facilities. The 300-M6 Course is approved by the Board of Nurse Examiners for the State of Texas and upon successful completion, soldiers qualify to take the National Council Licensure Examination for Practical Nurses (NCLEX-PN). The soldier must obtain and maintain licensure as a Vocational Nurse/Practical Nurse for award of the ASI M6."
* The Army has shuffled MOS designations over the last few years so you might have been offered a true LPN track by the Army.. if you take/pass the NCLEX-PN, then you're a PN no matter what, and I suppose you'd have to apply for a license in whatever state you wish to work in once leaving the Army.
Practical Nurse to Registered Nurse would typically (depends on school you attend) require you to take the typical prerequisites: Anat/phys I & II (with labs), microbiology with lab, sociology, chemistry with lab, statistics, etc.. some schools offer advance standing if you're an LPN/LVN.. Check the websites of various schools for their requirements/prerequisites. That's about the meat and potatoes of it
Keep safe over there and I hope the Lord keeps you all well.
Kindest
Teila K. Day
(Army Veteran)