SRS, I would have expected you to be in the US Army, but I can imagine you now, dining with scarlet majors at the base, and speeding glum heroes up the line to death....

The world would be a much safer place if the possessive apostrophe were abolished completely. It adds no information, and on the rare occasions when context does not completely specify whether possessive or plural, it might give a hint to the author that there is a style problem.