Hugh M. Cole, The Ardennes: Battle of the Bulge… (1965)
“ Mobile forces racing cross-country, shooting up isolated posts and convoys, do not necessarily make a battle. The German dash around Bastogne was preeminently designed to encircle, not constrict. The German commanders, well aware of the fragmentization of their enveloping forces, did not consider that Bastogne had been surrounded until the evening of the 21st. The major enemy impact on this date, therefore, came as in previous days against the east face of Bastogne. ”
