The railway system of Prussia was more extensively developed than that within Austria. Railways made it possible to supply larger numbers of troops than had previously been possible and allowed the rapid movement of troops within friendly territory. The better Prussian rail network therefore allowed the Prussian army to concentrate more rapidly than the Austrians. Von Moltke, reviewing his plans to von Roon stated, "We have the inestimable advantage of being able to carry our Field Army of 285,000 men over five railway lines and of virtually concentrating them in twenty-five days.... Austria has only one railway line and it will take her forty-five days to assemble 200,000 men." Von Moltke had also said earlier, "Nothing could be more welcome to us than to have now the war that we must have."