In private life, the pronounceable and suggestive abbreviation is achieved with some frequency - Mothers Against Drunk Driving are MADD, and so forth. Military people rarely spend the time needed to achieve this peak. Indeed the achievement might draw undo attention and suspicions of gimmickry. Sometime abbreviations get perversely out of hand and become just as long or longer than a phrase for which they substitute. Extra precision was paid for but not achieved.
Politicians are fond of decorously elliptical language.
Someone in the Pentagon said that when generals get more than two stars they are, of necessity, politicians. However, most of the military is admirably frank, and you will not find them calling a war a peacekeeping action. Most abbreviations are made below the political levels. The combination of frank expression, which is revealing, together with abbreviation, which is concealing, can have a certain charm. The JDWP is the Joint Doctrine Working Party.