are these machines making them a lot more vulnerable to addiction?
The machines are deliberately provided for entertainment. Anyone can become addicted to gambling, including soldiers. However, gamblers can become addicted for various reasons. If soldiers can control themselves in gambling, then wouldn't gambling just become entertainment for those who are far from family and public entertainment in the city?
Whether it is ethical or not depends on the perspective we view it from. I am also sure that soldiers may not have much time to keep playing the gambling machines provided. They have a time agenda that must be done routinely and with discipline.
They are different between soldiers who civilians who gambles with job, soldiers has already secured employment opportunity and they can control to be addicted in gambling than someone who is not working.
Most of the people who is addicted in the gambling, they're addicted in gambling because they seems gambling as a means of getting money and even though they lose today in the gambling they will still hope that they're going to win in next day, many things is involved on it.
So soldiers can easily control themselves in gambling because their salaries is accountable to their family, why someone who has no job is interested to win to make money