After January 1944, Lin Han stayed in Germany and did not return to China for half a year. Here, he continued to preach as "Sephiroth", and what he usually did was to take the opportunity to teach the devout female believers in the church, and wash them away from the dirt in their hearts and even bodies. In addition, the rest of his time was spent on the largest spirit ship, the battleship Tirpitz, as a processing plant for industrial equipment.

In addition to having the role of modern radar in warfare, the other biggest benefit of beings like Lin Han and Hannah is that they can use their fusion and manipulation ability to process some extremely complex engineering equipment.

The latter's ability in this area is the most powerful with Lin Han, followed by Hannah, and as for the other ship spirits, it is again. This is something that Lin Han and Hannah have studied, and the reason for this may be related to the question of the perfection of the "soul". Lin Han can manipulate metal to the atomic level, and Hannah can do it, but his ability is a little inferior, and other ship spirits can't do this.

Lin Han didn't want to return to China at this point in time, and the happiest person was of course Hannah. In order to make full use of Linhan's "production capacity", the Tirpitz was towed back to dry dock under the pretext of modification, and the aft turret was temporarily removed. The stern section of the ship was then converted into a small processing plant, where Lin Han was responsible for processing some advanced machinery and equipment that were difficult to produce by conventional means - such as precision machine tools, blades and key parts of jet engines, or enhancing the strength of parts of aero engines.

Some of these products will be sold to China at "friendly" prices, and some will be used in Germany for its own use. As for jet engines, now Germany, the first generation of jet fighters has been developed.

Since it is peacetime, Germany is not short of precious and rare minerals. At present, the engine life of the first-generation jet fighter has reached 70 hours, and it can be increased to 100 hours after Lin Han's power of faith is consumed.

Although the service life of 100 hours is still short, it is really in the face of the United States B17 and B29 seas, in difficult air battles. Very few fighters can use up the life of their engines, but they are enough.

At present, Germany has formed two jet fighter squadrons for test flights, one is the Me262 with a twin-engine jet engine, and the other is the single-engine TA183 developed by Dr. Tank.

The twin-engined M262, which will be used as an interceptor, is aimed at the B17 or B29 of the United States, a possible enemy in the future, and the single-engine TA183 is aimed at the American P47 fighter.

At present, the developed ME262 and TA183 are superior to those of the same period in history in terms of comprehensive performance. The TA183, in particular, has been corrected for some of its well-known aerodynamic design errors.

However, due to new technological products, these two jet engines are still very immature. Although Lin Han and Hannah copied the aerodynamic shape of the mature first-generation jet engine, they also brought back some theoretical information on aerodynamic design in the subsonic speed era. However, in the era when subsonic aerodynamics was just beginning, even if the advanced knowledge brought by the traverser ensured that there were fewer detours, it would take a lot of time to fully understand this knowledge.

After having a jet fighter. Hannah and Lin Han's worst concern about the high-altitude problem of American planes has finally been effectively resolved. Although these two aircraft are still extremely imperfect. But in the next year or two, the attention of the United States has been drawn to the Pacific direction, and Germany still has time.

To deal with the four heavy bombers of the United States, the ME262 is equipped with two newly developed 30mm MK104II cannons, while the TA183 is equipped with four 20mm cannons.

And in terms of piston fighters, Germany due to the influence of the Traverser. When it comes to aero engines, there is no mistake with the tech tree, and now a 2000 hp aero engine has been successfully developed. Considering that it is very likely that it will be an opponent of US aircraft in the future, the Navy is the first priority for the replacement of new aircraft.

By the beginning of 1944, HNA was in the process of replacing the TA152T with a 2,200 hp air-cooled engine. As for the liquid-cooled fighters, which were previously a transitional product, they are now being gradually withdrawn from the Navy. The foldable wings will be swapped back to the land-based version for use by the Marines. A modified version of the TA152T, the TA152T3 version with a 2,400 hp air-cooled engine, has now been prototyped. However, because it is peacetime, HNA is not fast to replace new aircraft.

The development of the navy of the United Kingdom, which is separated from Germany by the sea, is influenced by Artoria, and now the Royal Navy is also studying the use of air-cooled Typhoon fighters. Whether it is the air battle in the Atlantic or the air battle in the Pacific, the naval aviation of various countries has encountered the problem of liquid-cooled fighters being too weak in defense under the blows of anti-aircraft fire on the ground. Now both Britain and Germany are preparing to replace carrier-based liquid-cooled fighters with air-cooled ones. Even Japan, with the new Purple Electric fighter entering service, the Swift fighter, which was previously only a stopgap measure, is also being withdrawn from the Japanese Navy.

On the other side of the Atlantic, after nearly a year of dormancy, the US Air Force has also completed the refitting of front-line fighters.

On the naval side, the arrival of a large number of excellent F4U Corsair fighters and F6F Villain fighters replaced the backward F4F Wildcat and Buffalo fighters.

In terms of the army, the P47 flash fighters that use exhaust gas turbocharging and excellent high-altitude performance are also equipped with a large number of troops at the beginning of this year, eliminating the backward P40 and P38.

At this point, the famous "three baby bottle brothers" in the history of the American World War II Air Force finally gathered together this year.

On January 20, 1944, the United States finally launched the first wave of counterattacks.

The horn of the counterattack was carried out in the Alaska Peninsula.

The Alaska Peninsula is located between Bristol Bay in the Bering Sea and the Pacific Ocean, and is about 800 kilometers long from the mainland of Alaska, USA. The Aleutian Mountains run through the entire territory and form the skeleton of the peninsula. Multi-volcano. Influenced by the Alaska Warm Current and the polar Pacific air mass all year round, the climate has oceanic characteristics: the temperature in January is about 0°C.

Historically, even in the twentieth century, Alaska had a population of only 500,000 people, making it the least populous state in the United States.

During the Pacific period, the population of the region was even smaller, and it was a very inhospitable continent, and the population here was extremely sparse, and the military power of the Americans was very weak.

After the outbreak of the Pacific War, the Japanese Navy sent troops to occupy some of the islands in the area to guard the U.S. Navy from its surprise attack on Japanese guard posts from the north.

Looking at the map, in the North Pacific region, the Alaska Peninsula is like a woodpecker's tongue stretching out of the Pacific Ocean, and from the tip of the tongue to the west, you can see a series of dense island groups such as Unaraska, Uunak, Andreyanov, Kiska, and Attu, all the way to Kamchatka.

This vast group of islands is collectively known as the Aleutian Islands.

At the beginning of the Pacific War, the Japanese Navy actually occupied only a large group of islands west of the Andreyanov Islands, far from the Alaska Peninsula. As for the islands of Unaraska, Uunac, and the most important Alaska Peninsula to the east, which are close to North America, the Japanese side has not even touched them.

For Japan, the Arashen Islands are actually a piece of chicken ribs, and eating them here is more politically significant than military. At that time, the Japanese, and there were some hot-headed people, proposed to take the opportunity to occupy the nearby Alaska Peninsula or even seize the whole of Alaska, but this stupid suggestion was completely rejected by Li Huamei and the Japanese Navy.

Before World War II, Alaska was once again a sparsely populated wasteland after the gold rush ended. The Japanese really want to take this place, not to mention that they will not be able to extract any resources in the short term, and they will be turned into a quagmire by the Americans and unceremoniously trapped.

After the shadow of the fiasco of the Chinese war in 1935~1936, the middle and second members of the Japanese military department have now sobered up a lot on this point - even if they are not sober, it is useless, if the navy does not cooperate, it is impossible for these army red deer to swim across the Pacific Ocean by themselves? Besides, with Japan's meagre fuel supply level, even if the navy wanted to cooperate, there would not be so much oil to maintain a supply line across the Pacific.

For both the United States and Japan, the Aleutian Islands are battlefields far from their homeland, with little military value, and fighting here is a huge supply pressure. For Americans with deep pockets, this is not a problem, but for Japan, it is a big problem.

After the Battle of San Francisco in 1943, the United States used contraction tactics, and the Navy's capital ships were transferred eastward into the Atlantic Ocean, and the tactics of amassing troops in the turtle stream began.

However, it was only the capital ships that were avoided. In the Pacific, the US Navy plays the leading role in escort aircraft carriers.

By January 1944, the United States had 65 escort aircraft carriers in the Pacific Ocean alone, and these escort aircraft carriers were used as a temporary supplement before the main combat aircraft carriers were built.

After that, the U.S. Navy used a large number of escort aircraft carriers as a mobile force to send a large number of personnel and supplies to the eastern part of the Alaska Peninsula in the Aleutian Islands to expand the appearance of military bases here -- before that, in order for the Fletcher fleet to complete the farthest sneak attack in history, the United States had already built a number of military bases here in the second half of 1942. (To be continued......)

PS: One shift, and one more at night