There’s this thing called the “tooth to tail ratio”. For every combat soldier serving on the front, there are several behind the lines in support and logistical roles. Somebody has to guard the bases, train the troops, drive the trucks, maintain/repair the vehicles, cook the food, organize the munitions, crunch the data, provide cyber capabilities, etc etc. Very many jobs that need doing.

These soldiers are in a much safer role, but are still doing important work that needs to be done, and serving honorably. A volunteer with specific skills and/or personality is more likely to wind up in one of these safer jobs, as this makes the whole military function more smoothly when people are well-suited to their assigned roles.

Serving does not have to be very dangerous though. It does not need to be extremely frightening. Will always be at least a little dangerous, but so is getting in your car.