Their negotiating effort was a failure; Wildenbruch refused the surrender conditions and sent the Soviet agents back to the battlefield. When the emissaries arrived, the German garrison fired at them.While the emissaries were en route to their camps, the Germans suddenly opened fire, killing Captain I. The leader of the emissaries, Captain Miklós Steinmetz, appealed for a negotiation, but to no avail.On 3 January, the Soviet command sent four more divisions to meet the threat.
On 26 December, a road linking Budapest to Vienna was seized by Soviet troops, thereby completing the encirclement.
The nazi "Leader of the Nation" (Nemzetvezető), Ferenc Szálasi, had already fled on 9 December.
The IV SS Panzer Corps attacked from Esztergom toward Budapest Airport in an attempt to capture it and improve ability to supply the city by air. Meanwhile, urban warfare in Budapest increased in intensity.
Re-supply became a decisive factor because of the loss of the Ferihegy airport on 27 December 1944, just before the start of the siege.
He was killed together with his two subordinates when the German fire struck the Soviet car.
The Soviet offensive began in the eastern suburbs, advancing through Pest, making good use of the large central avenues to speed up their progress.
The next day, two groups of Soviet emissaries appeared as expected. He was buried at Budafok with full military honors.
The first, belonging to the 3rd Ukrainian Front, arrived at AM in the Budafok sector and was taken to the headquarters of General Wildenbruch. The second group of emissaries belonged to the 2nd Ukrainian Front and arrived at AM in the Kispest sector.
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 the last man.
As the new right-wing government and its German allies prepared the defense of the capital, IX SS Mountain Corps, consisting of two Waffen-SS divisions, was sent to Budapest to strengthen the city's defense.