“Military necessity gave the greatest strategic importance to that section of the country [Australia] which had been least developed; the main centers of population, wealth, and transportation were in the southeast, whereas the north and northeast now held the position of key military importance. The difficulty of transporting goods overland from Brisbane to Darwin was as great as from Darwin to the Philippines, if not so dangerous. No railroad connected the two cities, which were 2,500 miles apart by the most expeditious land route. For over a quarter of this distance only a rough motor road cut through the central desert, and this road ended approximately 300 miles from Darwin to connect with a railway capable of carrying no more than 300 tons of freight per day. Repair facilities were inadequate for maintenance of either road or railway, and some of the rolling stock literally buckled under the weight of heavy American equipment.” – Richard L. Watson, “Pearl Harbor and Clark Field” (from James Lea Cate and Wesley Frank Craven, The Army Air Forces in World War II, Vol. One, Plans and Early Operations)