Dear Confused
😕,
The traditional military HPSP contract (Navy, Army, Air Force) is a commitment of 4 years ACTIVE DUTY and 4 years INACTICE RESERVE...I like to call it the "4+4 commitment". ACTIVE DUTY means you are actually working for the military (on a ship, hospital, airplane, etc). INACTIVE RESERVE means that you are no longer working for the military, but the military can "Activate" you to Active Duty if they need you (e.g. in a time of war). For example: Lets say you served your 4 year Active Duty commitment and decided to go to the civilian world making the BIG BUCKS $$$$. During your first 4 years of civilian life, you are serving your Inactive Reserve time. You do NOT have to go to a reserve center once a month and drill. You do NOT have to spend your summer's with the military. You are just living your life separate from the miliary. But during this Inactive Reserve time, the military can "ACTIVATE" you back to Active Duty if they need you (it's kinda like a "draft"). In the past, it was rare for the military to "Activate" you unless there was a war going on . But in this post 9/11 era, getting "activated" is more likely to happen.
One thing to remember is this: Once you sign the HPSP contract you become a U.S. military officer. As an officer, you belong to the military until you resign your commission or retire after serving 20 or more years in the military. In the post 9/11 era, the military has "activated" doctors who served there 4+4 commitment, but did Not resign their commission. Therefore, if you do Not want to be "activated" after finishing your contract, then resign your commission once your inactive duty commitment is done.
A military residency does NOT count toward your Active Duty commitment. The military is training you to be board certified and they intend to use your skills after residency. However, let's say you did a military residency of 4 years, then finished your 4 year Active Duty commitment as an attending physician, and then got out of the military. Since you did 8 years of Active Duty, you do not have to serve your Inactive Duty commitment. Why? Because extra Active Duty time counts toward your inactive duty commitment.
Yes...this explanation is wordy, but that's military life. The military can complicate simple things, make it confusing, and cause you to become nauseous and barf

Then you start destroying government equipment with napalm and white phosphorus

. But then you realize that you love the military again because it has cool weapons
😍. It's basically a Love-Hate Relationship
😛