In another time and space history, Italy did not enter the war until late May, and the reason why it was two months earlier here was probably due to the impact of the Kiel Incident.

The German-Austrian high command decided to carry out defensive operations on the Italian front with as few troops as possible, mainly on the line of the Izo River, where the Italian army was most likely to attack, and the 20th Austrian Division, which had been assembled in advance, preemptively built two bridgeheads to cover the main position, and then the Austrian army transferred another 4 divisions from Serbia and Galicia, and the Germans sent the Alpine Army (quite a division) and a considerable number of heavy artillery to reinforce it.

The basic strength of the Italian war against Austria was 35 divisions, about 870,000 troops, 1,500 light artillery and 200 heavy artillery, which at first glance seemed to be quite a lot, but the combat quality and technical equipment were inferior to those of the German and Austrian armies, and the material preparation was insufficient, and there was a serious shortage of machine guns and artillery shells.

In the two months after the declaration of war, the Italian army launched two large-scale attacks on the heavily fortified defense line of the Izozo River by the Austrian army with more than double the superior force, but both were repulsed by the Austrian army, with a loss of more than 150,000 people. It was expected that the Italian army would launch a new offensive after the summer, but judging from the early battles, it would be difficult to achieve substantial results with the combat strength of the Italian army, which was often ridiculed as "the weakest in Europe", until new forces were added.

Compared with the poor performance of the army, the timely entry of the Italian Navy really made the Anglo-French allies in the Mediterranean feel relieved, and this force with thirteen battleships (including four dreadnoughts), seven armored cruisers, sixteen other cruisers, thirty-three fleet destroyers, forty-eight small destroyers, eighteen submarines and four minelayers was enough to suppress the Austro-Hungarian navy, which was originally to be blockaded by the British and French Mediterranean fleets, and even had the spare strength to assist the British and French in blockading the Turkish navy.

Because of this, the French Navy was able to draw four valuable dreadnoughts from their limited main battle force to join the Combined Fleet for the Defense of the Indian Ocean. The combat power of this fleet has been increased to the same level as that of the East Asian Combined Fleet.

Now let's turn our attention to the southeastern coast of the Mediterranean.

After Turkey entered the war in November last year, it formed a ~ Lestan front with the British and French colonies in the Middle East. In 151, encouraged by the East Asian Alliance's accession to the Allies and the victory of the East Asian Navy in the Battle of Lingayan, the 20,000 Turkish expeditionary force attempted to cross the Sinai Peninsula and force the Suez Canal in the name of anti-British "jihad".

Due to the threat of the East Asian alliance, the British army had to mobilize mobile forces to defend its Asia-Pacific colonies, and was no longer able to open up new battlefields, and the Battle of the Dardanelles, which began in 2 years 15 in the history of time and space, did not take place here, and the Turkish army still had a considerable number of mobile forces available for the Syrian-Pakistani front.

The Imperial General Staff also hoped that the Turkish army would continue to attack Egypt. At the very least, the Suez Canal was cut off in order to hinder the connection between the British mainland and its Asia-Pacific colonies, and to create favorable conditions for the East Asian coalition to launch an offensive in the Indian Ocean, and for this purpose an envoy was sent to Turkey through Germany.

In addition, taking into account the practical difficulties of the Turkish side: first, the 3rd Regiment of the Caucasus, which had attacked the Caucasus, suffered a devastating blow in the Battle of Salkamosh at the beginning of the year and urgently needed to recover; The second was the rise of Arab guerrillas who rebelled against its rule in the rear of the Egyptian front, receiving aid from the Entente by sea. Constant attacks on towns and cities have sabotaged the railway, and the security situation along the railway line has deteriorated dramatically. This made it difficult for the Turkish army to provide logistical support for more expeditionary forces attacking Egypt.

By the third, after coordinating with the German General Staff Headquarters, the Imperial General Staff abandoned the original idea and no longer asked the Turkish army to attack Egypt.

After confirming the operational focus of the 15-year war, the Turkish army replenished the reserve that was originally intended to be used for the defense of the strait into the 3rd Regiment Army, and in early April, it once again launched a Caucasus offensive to focus on the Baku oil fields on the Caspian Sea coast.

Although the Russian Caucasus Army Group achieved a major victory in the previous operations. However, due to the sharp deterioration of the situation in Central Asia, it was necessary to divide troops and reinforce them, so that it was impossible to take advantage of the situation to expand the results of the battle, and the troops were seriously short of ammunition. Combat power is greatly affected.

At this time, thanks to the role of the Russian secret services, the Armenians and Essols in the rear of the Turkish army in the vicinity of Lake Van launched an anti-Turkish uprising. forced the Turkish army to return to suppress it, and the number of troops sent to suppress the rebellion in Van was as large as a whole division.

The Russian Caucasus Army took the opportunity to launch an attack on Persian Azerbaijan, which had previously been occupied by the Turkish army (the country annexed the northern part of the Persian province of Azerbaijan, and the southern part of Persia was still part of Persia, that is, Persian Azerbaijan), and by mid-May, the Turkish army was not only driven out of Persian Azerbaijan, but also lost a large area of territory east of Lake Van by the middle of May. The Russian army consumed a lot of ammunition during the battle, had little reserves left, and was forced to go on the defensive.

However, the limited victories of the Russian army on the Caucasian front were far from offsetting the repeated defeats of its main forces on the Eastern European front.

By 15 years, the German-Austrian troops on the Eastern European front had regained the initiative in the battle from the Russian army.

On the eastern Prussian side of the northern section of the front, after the Battle of Augustov, the German army broke through into the Lithuanian plain, pressing Warsaw from the north and advancing to Russian territory between the Neman River and the Baltic Sea.

On the Galician side of the southern sector of the front, after the Battle of Pzeshmir, the Austro-German army advanced to the San line, intending to recover the entire Galician region and capture the rear of Warsaw from the south.

At the end of 2 February, the German and Austrian High Command formulated an operational plan to launch a centripetal attack with Warsaw as the center and form a "Cannae" encirclement to annihilate a large number of Russian troops with vital strength.

The plan was to concentrate seven elite German divisions in the area of Sharpsnich north of Warsaw to make a breakthrough, and to concentrate 35 German-Austrian divisions in the area of Yarosław north of Pzeshmir and on the west bank of the San River to launch an attack.

At the beginning of the 4th, the two battles were fought at the same time, and the German-Austrian army attacking Yarosław on the southern front was progressing smoothly, quickly breaking through the San River, taking Lviv lightly, and basically recovering the Galician territory lost by Austria at the beginning of the war by mid-5.

The German army attacking Sharpsnich on the northern front failed to do so, and was nailed to the west of the Narev River by the Russian army in front of them, and the Russian army in the Warsaw salient began to systematically shrink the front, exchanging space for time, in an attempt to preserve strength as much as possible.

By the end of 5, the first German army on the northern front had advanced to the city of Warsaw, which was two months ahead of schedule compared with the history books of another time and space......