In the plains the heads of the Italian columns reached the line of Azzanodecimo, Portogruaro, Concordia, and Sagittaria.
On the same day Allied troops broke through the enemy's fortifications at Celadel. The Tonale Pass was forced and the Val Arsa taken from Col Santa to the north of Pasubio.
The advance was continuing irresistibly on the Tonezza, the Asiago Plateau, in the Sugana Valley, the valleys of Cismon and Cordevole, and along the Piave and on the plains.
On the Tagliamento, cavalry, supported by mounted batteries, Bersaglieri, and cyclists, was winning bitter combats against the adversary, who, surprised on his side of the river, was fighting with great stubbornness. The Second Brigade, with the regiments from Genoa and Italian and Allied airmen, brilliantly maintained exceptional activity. The total of prisoners had reached 100,000 and the guns captured more than 2,000.
The bridging of the Livenza River was being rapidly carried out by British troops, some of whom were well east of that river. The number of prisoners captured by the Tenth Army alone could not at that time be accurately given, but it was known to be considerably over 15,000, with 150 guns. Of these more than 10,000 prisoners and more than 100 guns had been captured by the Fourteenth British Corps. The booty taken at Sacile included among the vast amount of other material an ordnance workshop complete and a pontoon park. In their operations on the Asiago Plateau the Forty-eighth British Division captured nearly 200 prisoners. The British air force continued throughout the day to bomb the dense masses of retiring Austrians with visibly good results.
In the meantime Austria-Hungary had appealed for an armistice on October 29, 1918. After careful deliberations on the part of the Allies, during the process of which the Italian forces had continued their victorious advance without abatement, the terms on which the Allies had agreed were submitted to the Austrians, who accepted them on November 3, 1918, and hostilities were suspended on November 4, 1918, at 3 p. m. Germany had now lost her route to the East, and if she continued the war must fight single-handed on the western front.
Before the armistice became operative the Italian columns, having passed every obstacle and overcome every resistance, had advanced with great impetus and had firmly established themselves behind the enemy in the Adige Valley, closing the openings of all the roads convergent to it. The Seventh Army, by rapidly taking the region to the west of the Adige, became master of the Passo della Mendola, and had pushed patrols on the river in the direction of Bolzani, The First Army, which, with the advance made on November 3, 1918, by its Twenty-ninth Corps, had crowned its brilliant maneuver for the taking of Trento, occupied Monticelli, dominating the confluence of the Adige Noce. Early in the afternoon of November 4, 1918, the headquarters of this army were established at Trento.
The landing at Trieste began at 11 o'clock a. m., November 3, 1918. The first to land was a battalion of the Royal Italian Marines, which was received by the population assembled on the embankments with great jubilation. The city was bedecked with Italian flags, and in a short time Bersaglieri were marching through its streets, enthusiastically acclaimed by the population.
From then on the Italians extended their successes toward the south along the Dalmatian coast. Within a few days Austria-Hungary lost all her ports and her end as a maritime power seemed assured.
Lissa was occupied by naval forces on the same day. On November 4, 1918, Italian vessels occupied Abbazia, Rovigno, and Parenzo on the Istrian coast, the neighboring island of Lussin, and, in the middle Adriatic, Lagosta, Meleda, and Curzola. Other ships entered the port of Fiume. Small parties of sailors landed at Riva.