In February 1915, the flames of war originating in Europe swept every parallel of the sun's rays – the 12 most powerful and influential countries in the world were involved, affecting more than 1.5 billion people and more than 10 million troops.

On the eastern side of the 700-kilometer fortified line in Western Europe, the German army gathered seven army groups and 26 corps, with a total of 95 divisions, 1.9 million men, 4,000 light artillery pieces and 1,695 heavy artillery pieces. The Entente** that confronted it included eighty-three divisions of France, twenty-two divisions of Great Britain and six divisions of Belgium, a total of 111 divisions, 2,650,000 men, more than 4,000 light artillery pieces and about 1,600 heavy artillery pieces.

The French breakthrough at Shambany and Artois in December last year was prepared too hastily and quickly became local, halted in January. According to the strategy of operations on the Western Front established in mid-January, the spring offensive will be launched on all fronts from February 16, focusing on the breakthrough of the areas of Shambigny and Saint-Miel, and a new round of meat grinding will be launched in the muddy and cold trenches......

On the East Prussian side, after the great victory of Tannenberg, General Hindenburg, the commander-in-chief of the German Eastern Front, launched the Battle of Augustov aimed at encircling the Russian 10th Regiment with a total of 250,000 troops under his command of two armies and eight and a half armies.

On the front line of the Balkha Mountains, after two months of bloody fighting, the German-Austrian forces forced back the Russian army that was inferior in strength, and rescued the 120,000 Austrian troops in the Přeshmir fortress in time, and the Russian army retreated to the San River line. The two flanks of Warsaw were exposed in front of the German-Austrian armies in the north and south.

The Balkan front in south-eastern Europe has been in a long period of silence since the Serbian army recaptured Belgrade late last year.

In the 1914 war, the Kingdom of Serbia, with a population of only 4.5 million, and the Kingdom of Montenegro, with a population of only 440,000, resisted the invasion of Austria-Hungary, destroying 7,600 officers and 274,000 soldiers in four months...... ceased to be a combat tool of sufficient value", forcing the Austro-Hungarian high command to abandon the continuation of active action against Serbia, leaving only two corps to maintain the front, and the rest of the forces to be transferred to the Russian front. The Serbian army also paid a heavy price for the victory, losing as many as 132,000 men, and the army was reduced to less than 100,000 men, unable to counterattack again.

Wind and snow in the mountains of the Caucasus. The battle of Salkammers, launched by Turkey's most elite 3rd Regiment since December last year, finally ended in a crushing defeat under the powerful counterattack of the Russian Caucasian Army, and by January 23, the army group had only 12,400 men left, with losses of up to 90,000 men! Thirty thousand of them froze to death in a snowstorm in the days after the battle......

The Russian army also paid a high price for victory, with more than 20,000 dead and sick in the Caucasian Army, more than 6,000 frostbitten, and "amputated limbs piled up into a hill"......

Turn the globe and come to the dry and cold Central Asian plateau. On the 21st, the Northwest Front of the Chinese Army used 305-meter naval guns and 380-meter mortar guns erected on trains to bombard them continuously for two weeks. With 8 infantry divisions launched a general offensive at the same time, they conquered Almaty, the most powerful Russian fortress in Central Asia, in one fell swoop, and completely annihilated more than 20,000 defenders. While the infantry units were besieging the fortress, the front assault group with the armored cavalry units as the main body crossed the frozen Ili River, bypassed the Almaty fortress along a rushed military road opened by the mechanized engineering troops in the sand and snow, rushed directly to the railway line between Almaty and Taraz, used the captured ground train to transport supplies, and concentrated 300 armored fighting vehicles along the railway line to quickly advance westward, and entered Kopa on January 6. On January 20, the Chu River was crossed, and by the 24th, the advance had reached Taraz (Zhambyl) and advanced 500 li in 40 days. Along the way, they were attacked by the enemy, and they were broken with a single blow, and no less than 5,000 people were captured. In fact. The total strength of the Russian army in Central Asia is only 4 Turkestan divisions, plus auxiliary troops, the total strength is less than 100,000 people, and the equipment is more backward than the Russian army in other places, but the Northwest Front of the Chinese Army in front of it has 14 infantry divisions and ~ brigades, with a total strength of 400,000 people, and is equipped with hundreds of reliable and agile light armored combat vehicles - the disparity in strength can be described as extreme.

In fact, the Russian army here is not only worried about the Chinese army in front of them, but also the remnants of the Kokand kingdom, the unruly Kazakh tribes, and the Shia Muslims who are trying to return to the Persian homeland, are scattered in this land that was barely conquered in the later period. The Khanate of Khiva and Bukhara, which once ruled the vast land between the Amu Darya River and the Syr Darya River and the Aral Sea, had been a Russian protectorate for less than 40 years, and the patriots of the two countries were very happy to see the defeat of Russia and take advantage of it and regain its lost territory.

Further east, the Chinese Mongolian Front had just thwarted the Russian counteroffensive and gained a foothold on the eastern shore of Lake Baikal, and the tens of thousands of Russian troops besieging the fortress of Ulan-Ude were already unable to fly, and the only thing that plagued the Mongol Front was the supply problem. Of course, the rush to build iron is not a long-term solution, and in the final analysis, the date of a new offensive by the Mongol front depends on when the northeastern side will capture Chita.

The exploratory offensive launched by the forward troops of the Northeast Front on January 30 was fruitless, and it would take time for the large forces to advance and assemble, but with a huge strength of 470,000 people in 16 divisions, 3 armored brigades, and 10 cavalry brigades, it must have been no suspense to deal with the 1~ army that had lost more than half of it in the Battle of Hylock, not to mention that since the Chita Fortress was razed in the last war, the Russian army, which was short of funds, never built even a single fortress to Chita.

Thousands of kilometers away in the South China Sea, after the naval and air battle in Lingjiayan Bay, the Western Four-Nation Joint Pacific Fleet took refuge in Singapore to recuperate from its wounds, and for the sake of safety, several of the most seriously injured capital ships retreated to a military port in the Indian Ocean for repairs. Among them, all four Haizi-type dreadnought-type battleships and two Lei-type battlecruisers of the Korean and Japanese navies were no match for the broken Shikoku fleet, and the East Asian coalition forces completely controlled the sea supremacy from the South China Sea to the Philippine Sea for a time.