[Please read my last paragraph as caveat before reading on]
I can imagine that if you are coming from a civilian residency (like
@Volatile seems to have done) then you are probably utilizing first duty station as opportunity to learn about what MilMed will be like. In this instance I would say yes, adding an overseas tour on to that would be tough for those not mentally prepared to do so. BUT, in my opinion graduating, knocking out Board Certification, renting out or selling current house and moving family overseas is very doable and worth it. Make sure you get information from someone who has direct experience and also is someone you can relate with on a personal and professional level.
Generally, overseas assignments are not hard to get slotted in to. Specific location availability may vary, but you will find more competition over CONUS billets due to majority of MilMed physician desire to avoid the stress of overseas move or inability to moonlight, etc. etc. If you let your specialty leader and detailer know early that you want to go overseas you will likely get penciled in right away.
A military physician who cannot moonlight is not losing half of their income. They are receiving their income, OHA plus COLA. Moonlighting is a privilege and should never be expected heading in to a military commitment because you will likely be very disappointed at some point. While on active duty I recommend never living a lifestyle that includes moonlighting income because it can always be taken away...then you're SOL.
To
@histo-95 original post, quality of life is usually very good at all locations overseas because of lower volume, smaller commands and travel options (sans COVID). That being said, learning about which spots have the largest number of billets for your specialty really adds to quality of life by decreasing call frequency and increasing ability to collaborate on leadership requirements or tough cases.
Okinawa was incredible. Adds one leg to most big travel adventures because you have to get from Oki to Tokyo but we still managed to hit over 8 different countries while there and had more time with our young kids than we ever could have imagined.
All of that being said I think I agree with
@DrMetal for the time being. Until COVID "resolves" and travel returns to normal I would not volunteer for overseas gig. Too much of the benefit of the time there is traveling, experiencing the new culture and getting outside your comfort zone after 30+ years in one country. Hanging out with Americans in base housing for the majority of an overseas tour doesn't check any boxes for me.