Engineering

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April 10, 2026

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April 10, 2026

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"That total war would ultimately be decided by material rather than moral factors was not lost on the Germans. 'The first essential condition for an army to be able to stand the strain of battle', wrote Rommel, 'is an adequate stock of weapons, petrol and ammunition. In fact, the battle is fought and decided by the quartermasters before the shooting begins. The bravest men can do nothing without guns, the guns nothing without plenty of ammunition; and neither guns nor ammunition are of much use in mobile warfare unless there are vehicles with sufficient petrol to haul them around.' By the final year of the war, an active US army division was consuming around 650 tons of supplies a day. Because a single army truck could carry just five tons, this posed a formidable logistical challenge. Indeed, as supply lines were stretched from 200 to 400 miles in the months after D-Day, deliveries to the advancing armies slumped from 19,000 tons a day to 7,000 tons - hence the slackening of the pace of the Allied advance in the second half of 1944 and one defect of Montgomery's grab for Arnhem. The last phase of the war revealed the importance (consistently underrated by both the Germans and the Japanese) of assigning ample numbers of men to the task of supply rather than combat. The ratio of combatants to non-combatants in the German army was two to one; but the equivalent American ratio in the European theatre was one to two. In the Pacific, the Japanese ratio was one to one; the Americans had eighteen non-combatants for every man at the front. As the war came to an end, the United States had nearly as many men under arms as the Soviet Union (around twelve million in each case) but only a minority of Americans were actually engaged in combat."

- Logistics

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"The 19th and first half of the 20th century conceived of the world as chaos. Chaos was the oft-quoted blind play of atoms, which, in mechanistic and positivistic philosophy, appeared to represent ultimate reality, with life as an accidental product of physical processes, and mind as an epi-phenomenon. It was chaos when, in the current theory of evolution, the living world appeared as a product of chance, the outcome of random mutations and survival in the mill of natural selection. In the same sense, human personality, in the theories of behaviorism as well as of psychoanalysis, was considered a chance product of nature and nurture, of a mixture of genes and an accidental sequence of events from early childhood to maturity. Now we are looking for another basic outlook on the world -- the world as organization. Such a conception -- if it can be substantiated -- would indeed change the basic categories upon which scientific thought rests, and profoundly influence practical attitudes. This trend is marked by the emergence of a bundle of new disciplines such as cybernetics, information theory, general system theory, theories of games, of decisions, of queuing and others; in practical applications, systems analysis, systems engineering, operations research, etc. They are different in basic assumptions, mathematical techniques and aims, and they are often unsatisfactory and sometimes contradictory. They agree, however, in being concerned, in one way or another, with "systems," "wholes" or "organizations"; and in their totality, they herald a new approach."

- Operations research

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