Tragically a lot of column A. And happily a lot of column B. According to a 2013 DOD report, the suicide rate for soldiers (Army) was more than twice that of American civilians. (In recent years, the numbers of active duty suicides have fallen). This rate (about 30 out of 100,000) is much more than the Civil War's number (up to 14.5 on high estimates). Now, couple that with the fact that an American military member is more likely to die by their own hand than by an enemy's. As in your question, yes. Thankfully, combat, disease, and exposure are much less deadly in this day and age.