In just over four hours, the three lines of defense of the Russian 3rd Army, which was 15 kilometers deep, were all broken through, and the infantry division of the 14th Army of the Austrian Army followed behind the tanks and armored vehicles of the armored brigade, as if entering a no-man's land, and the assault cluster composed of more than 200 combat vehicles was like an unshakable torrent of steel, rushing the Russian defense line to pieces.

By 11 a.m., the Austro-Hungarian 3rd Army's nearly 200,000 troops were pouring in from the gap opened up by the 14th Army, and with the follow-up of the Austro-Hungarian 6th Army, the defensive line composed of the Russian 3rd Army collapsed on all fronts. Neither the German nor the Austrian attacks on the southern front met with too fierce battles, and in just half a day, the defensive lines built by the Russian army in the west and south of Galicia were broken through.

More and more German-Austrian troops broke through the line and began to advance in depth. The Russian troops on the front line quickly collapsed, they abandoned their rifles, jumped out of the trenches, and fled in all directions like frightened sheep.

In just one day, the two armies deployed by the Russian army on the front line quickly collapsed, and it was not until May 4 that some effective resistance and counterattacks began to be organized.

Boloyevich led the Austro-Hungarian 3rd Army in a rapid northward movement, ignoring the flanks and the Russian army behind him, while Helden commanded the main army of four armies to follow.

Boloyevich's army group quickly interspersed and disrupted the entire Russian defense line, and they were in danger of being cut off from the front and rear,

Dimitryev's Russian 3rd Army was annihilated. After five days of fighting, less than 1,000 officers and men could be mustered in each division. In the space of five days, 140,000 Russian troops have been captured. The German army in the west was also advancing rapidly, the Russian 9th Army in front had also been routed, and the German 11th Army was directly penetrated into the San River valley, and Mackensen was determined to block the retreat of the Russian army.

The Russian 8th and 11th armies retreated quickly and finally escaped from the German-Austrian encirclement before Mackensen and Boloyevich could rendezvous, while the Russian 4th and 5th armies on the Carpathian line chose to go west along the Romanian border and retreated intact across the Dniester River.

The 1st Armored Brigade, which made immortal achievements in breaking through the Russian defense line, is now basically scrapped, and there are only 15 intact combat vehicles left, and most of the others are lying on the road due to mechanical problems, and only a small part of them are destroyed by Russian artillery or mines.

This was the world's first precedent for the large-scale use of tanks, and the defense line built by the 250,000 men of the Russian 3rd Army was suddenly shattered under the impact of more than 200 tanks and armored vehicles.

In East Prussia, Hindenburg was arranged by the jealous Falcenhain to act on the Northern Front with the 4th and 20th armies, so as not to accumulate more exploits for him.

The goal of the 20th Army under Hindenburg was to cut off a major railway from Minsk to Warsaw, while the 4th Army was aimed at Riga. The Russian 10th Army quickly collapsed under the attack of two German armies, losing half of its strength, and Hindenburg had a smooth road ahead of him.

Tannenberg has again become a lingering nightmare for the Russians.

On May 8, 1915, Ludendorff commanded the German 8th Army and the newly formed 10th Army to form an encirclement of the newly formed Russian 2nd Army at Tannenberg again, and the tragedy of Samzonov was repeated again, 210,000 people of the Russian 2nd Army were completely annihilated again, and only 2 armies and less than 30,000 people survived.

The entire Russian defense line collapsed on all fronts. The Russian 1st and 12th armies were forced to abandon Warsaw and retreat along the railway line from Kiev to Warsaw.

The entire Eastern Front turned into a chase contest, and the combined forces of the Mackensen Group and the Austro-Hungarian 2nd and 3rd Armies had been biting the fleeing Russian 9th Army, from Przemyr to Lviv to the railway hub at Leviv.

Lechelton commanded the Austro-Hungarian 1st, 6th, and 7th armies to pursue the Russian 11th Army and approach Kiev.

The Austrian 4th Army advanced south along the Dniester River.

The East Prussian Heavy Army Group and the Mackensen Group under the command of Ludendorff finally surrounded the remnants of the Russian 12th Army and the 9th Army in the Brest Fortress, and the commander-in-chief of the Russian army, Grand Duke Nikolai, did not know whether he was lucky or unfortunate to escape the fate of being captured, and he led the remnants of the Russian 1st Army to escape to Minsk.

Now the Tsar has only four intact main armies left in his hands, and although the remaining troops add up to more than 3 million people, they are spread across the vast land of this empire, and there are only 1.3 million troops capable of fighting on the front line.

Russia has lost its offensive capability, but it is still holding out.

The German-Austrian victory on the Eastern Front that could change the course of the war was like a thrilling drama. Before May, the future of the Entente was bright, and it seemed that victory was only a matter of time. The Russians marched all the way on the Eastern Front, and the Italians and Romanians fought back, which was enough to make Austria-Hungary lose the ability to fight back.

The landing of Anglo-French troops at Gallipoli looked like the Ottoman Empire could fall at any moment.

The future is bright.

However, in the following month, a great catastrophe struck. The Russians collapsed surprisingly quickly under the blows of the German-Austrian forces, and in just one month, the Russians lost 1.7 million of their main force, of which about 1.2 million were taken prisoner, and they would continue to suffer in the coming months.

Now that the Germans and Austrians were free, the 11th Army led by Mackensen had turned to the Balkans, and the Austrians had withdrawn 3 elite armies from the front line.

They were ready to pick up the isolated Romanians.

Now that there was no one to help Romania, the Bulgarians were eager to join the Allies with a brilliant victory on the Eastern Front by the German-Austrian forces, and they did not want to miss the opportunity to share in the fruits of the victory.

The collapse of Russian forces on the Eastern Front was a huge blow to the Entente, the Italians were mired in infighting, many in parliament were clamoring for withdrawal from the war, accusing the government of rash actions, and their armies were slow to act, and only at the end of June did they launch an offensive.

The result was a surprise to the whole world, and the 350,000-strong Italian army was defeated by the 30,000-strong local Tyrolean defense force in the Battle of the Isonzo River, and then it was silent.

On the worrying battlefield of Gallipoli, the Turkish army under the command of General Sanders outnumbered the weak and the strong, and desperately blocked the Anglo-French forces on the peninsula, unable to break through at all. The Turks' prodigious fighting prowess made the British decision-makers, who had rashly angered the Ottomans at the beginning of the war with two warships, regret it.

Now the whole situation has taken a big turn, the future of the Allies looks bright, the Germans have captured all of Poland, most of Lithuania, half of Belarus, and together with the Austrians, the smaller half of Ukraine. The Russians now seemed powerless, but retreated all the way, and their forces continued to break down in the retreat.

At Gallipoli and the Dardanelles, the Turks also achieved victories, the Anglo-French forces made no progress, and it seemed that the retreat was only a matter of time.

With the German-Austrian forces moving south, the entire Balkans will come to an end.

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