Budapest narrowest point in Budapest. Pest lies on the flat terrain of the Great Plain while Buda is rather hilly. The wide Danube was always fordable at this point because of a small number of islands in the middle of the river. The city has marked topographical contrasts: Buda is built on the higher river terraces and hills of the western side, while the considerably larger Pest spreads out on a flat and featureless sand plain on the river's opposite bank. Pest's terrain rises with a slight eastward gradient, so the easternmost parts of the city lie at the same altitude
Siege of Budapest the old town. The Red Army, after a much-needed pause in hostilities, resumed its offensive on 19 December. On 26 December, a road linking Budapest to Vienna was seized by Soviet troops, thereby completing the encirclement. The Nazi-supported "Leader of the Nation" ("Nemzetvezető"), Ferenc Szálasi, had already fled from the city on 9 December. As a result of the Soviet link-up, nearly 33,000 German and 37,000 Hungarian soldiers, as well as over 800,000 civilians, became trapped within the city. Refusing to authorize a withdrawal, Adolf Hitler had declared Budapest a fortress city ("Festung Budapest"), which was to be defended to