Logistics is the supply and management of things such as goods, information and other resources from the point of origin to the point of consumption. The art of logistics was first used in ancient times when Greek, Roman and Byzantine soldiers needed supplies and finances managed so that they could effectively meet their military goals. Those appointed to run the logistics branch of operation were known as "Logistikas" from the Greek word "logistiki" which means accounting. Today logistics is an advanced branch of the military sciences and has practical applications not only in the armed forces, but also to business and production needs. In the military today logistics (or combat service support as it has been known) is applied pretty much any time anything or anyone has to be moved from point A to point B. A military logisticians is the one tasked with things like getting food and water to soldiers when they need it, or getting troops where they need to be when theyre needed. These types of duties are often times difficult to carry out because as with other sciences, military operations are subject to any manner of variables that were not foreseen.