The Hawaiian Islands, located in the middle of the Pacific Ocean, have temperatures between 14 and 32 degrees Celsius throughout the year, with no severe cold or excessive heat; With its deep blue ocean, expansive beachfront beaches, year-round flowers, and a different kind of culture, it's undoubtedly a great place to relax.

Of the eight main islands of the Hawaiian archipelago, Oahu is not the largest in size, but it is one of the best in the archipelago due to its excellent conditions and well-developed conditions. The island is home to bustling Honolulu (Honolulu), the world-famous Wakiki beachfront beach, and Pearl Harbor, one of the best natural harbors in the world. As early as the end of the 19th century, it became a dazzling "pearl" on the Star-Spangled Banner, and today the "pearl" is still there, but it is set in the emperor's crown.

After seizing the Hawaiian Islands without firing a single shot, the Japanese Navy was able to find a treasure, especially Pearl Harbor, which had been operated and repaired by the US military for many years, and had become a first-class large-scale military port, so the Japanese Navy moved the headquarters of the Second Fleet, the so-called Pacific Dispatch Fleet Command, from Tahiti to this place, and regarded this as the fleet's first home port.

At the time of the outbreak of the German-Japanese War, there were 7 battleships, 4 cruisers, 2 aircraft carriers, and a large number of light ships moored in Pearl Harbor, but by February 1929, only the battleships "Ise", "Hyuga", "Satsuma", "Settsu", the "Atago Komi" and the aircraft carrier "Hosho" were moored in Pearl Harbor, and nearly one-third of the light ships were transferred back to the mainland thousands of miles away to deal with the two fleets deployed by the German Navy in the Far East.

For the Japanese stationed in the Hawaiian Islands, the redeployment of a large number of ships to their homeland is not the end of the world, nor does it mean that they will easily surrender this strategically important archipelago to the enemy. In addition to the fleet stationed at Pearl Harbor, the Japanese garrison in Hawaii also included an army air force, a naval shore-based flight group, two standard army divisions, namely the 19th and 22nd divisions, a marine brigade subordinate to the navy, and a garrison unit of the fortress, with a total strength of more than 70,000 troops, more than 320 combat planes of various types, and 133 large-caliber fortress guns.

In terms of commanders, the commander of the Japanese garrison at Pearl Harbor was Vice Admiral Mitsuzo Fume. The commander of the fleet was Vice Admiral Yaichi Mukai, and the army garrison was held by Vice Admiral Tsuchihashi at one time, and the three lieutenant generals were of equal rank and in a state of non-jurisdiction.

On February 11, 1929, more than 500 nautical miles east of Pearl Harbor, a large combat fleet was speeding in the direction of the Hawaiian Islands in a formation of three columns. On the battleships and battlecruisers, the sailors were all gearing up and eager to try, and carrier-based planes took off and landed on the fleet's aircraft carriers from time to time, and the entire fleet presented a busy scene.

As the commander of the German 4th Pacific Fleet. 59-year-old Feng. Vice Admiral Dalvik felt a great responsibility from the moment he was ordered to go on the expedition, and although the German Navy currently had four fleets in the Pacific, this fourth fleet was undoubtedly the most powerful - the battleships "Kaiser William the Great", "Albrecht", "Geerz", "Württemberg", the battle cruisers "Wools", "Count Spee", "Lützov", the heavy aircraft carriers "Kemal", "Prussia", "Lorraine", medium aircraft carrier "Joamshi", " "Seikendorf", "Tirpitz", escort aircraft carriers "Knobsdorf", "Ludwig", "Hermann", "Mellendorf", plus 7 heavy cruisers and battle cruisers, 12 light cruisers, 46 destroyers, 32 submarine hunters and 19 auxiliary ships, such a fleet concentrated nearly 1/3 of the strength of the entire German Navy.

The Kaiser and the German Navy were relieved to entrust such a powerful fleet to von . It was not a sudden decision for such an unknown commander as Dalvik, and the German Navy in the other world was far inferior to the Army in the two world wars for strategic reasons. Only a handful of people who can reach the "famous" place, such as Tirpitz, Scher, Hipper, Spee, Raeder and Dönitz. But this does not negate the quality of the German admirals. Feng. Born into an aristocratic Prussian family, Dalvik joined the German Navy at the age of 17 and joined the ranks of German Admiral in 1913 thanks to his talent and hard work.

At his age, this was already a remarkable achievement, and in another world he had the privilege of commanding the 4th Battleship Detachment of the German High Seas Fleet in the mighty Battle of Jutland, but the outcome of the naval battle was only for Schell and Hipper to be known to the world, and after that, Dalvik waited silently for the end of the war with the German High Seas Fleet.

In this world, history begins with the Battle of Pascalflo in 1914 and takes a very different path, the blockade of the British Isles, the Battle of Venice Bay against Austria-Hungary, and the Battle of the Caribbean Sea against the United States. The role played by mid- and high-ranking naval commanders such as Dalvik is also very important. After Schell and Heinrich were introduced to the fleet command for age and physical reasons, Wilhelm Zuxiong, Benck and von Brown. Dalvik, the generals who had been fighting on the front lines for many years, finally began to take on real responsibilities.

"General, the reconnaissance aircraft reported the sighting of a Japanese light cruiser 150 nautical miles ahead of the fleet!

General Schchemitt asked if it was necessary to send carrier-based bombers to sink it! The communications officer, dressed in a Prussian blue naval uniform and wearing a white brimmed hat, reported the latest information to von Von, who was engrossed in the nautical charts. Lieutenant General Dalvik. During summer and tropical voyages, the German Navy issued officers and non-commissioned officers and sailors with this white cap, and in the cold zone a blue cap with an extra coat.

"Light cruisers?" Dalvik straightened up and looked at the communications officer, it was not surprising to encounter Japanese warships in this area, according to the reconnaissance report of the intelligence service, the Japanese troops stationed in Hawaii usually deployed the first line of warning at a distance of 400 to 500 nautical miles from the islands, with destroyers, submarines and seaplanes acting as guards, the second line of warning was 250 to 300 nautical miles, and the third line of warning was deployed within 150 nautical miles of the islands. Destroyers and patrol ships are usually used as guards, and as for this light cruiser......

"Tell General Schchemit. His plane just needs to continue to monitor that light cruiser! In addition, the 1st Destroyer Fleet was ordered to go forward 40 nautical miles in front of the fleet to deploy a submarine hunting formation, and use radar to conduct air vigilance! If nothing else, the Japanese submarines and planes will soon come to visit us! Lieutenant General Dalvik said confidently.

Shortly after the order was given, 11 destroyers accelerated away from the main fleet, all of which were medal-class destroyers equipped with new sonar and Hawkeye Type IIE radars, and from 1914 to 1924 German destroyers completed the transition from torpedo attacks to anti-submarine air defense. By 1929, more than 200 destroyers in the German Navy had a displacement of more than 1,800 tons, which was rare in the navies of various countries, especially the Japanese Navy, which still regarded destroyers as lightning strike ships, and its main destroyers Kamikaze-class, Fengfeng-class, Muzuki-class, and Fuxue-class had a displacement of no more than 1,800 tons, and were characterized by high speed and a large number of torpedo tubes, of which Muzuki and Fuxue were equipped with powerful 24-inch (610 mm) torpedoes, according to the views of the Japanese admiralsThese destroyers can easily damage and sink the enemy's medium and even large ships in close combat and night combat, and a successful destroyer lightning strike can cause the enemy fleet to lose a considerable number of fighters. In this way, favorable conditions will be provided for the main forces of this side to carry out a decisive battle of the fleet.

Compared with. The German admirals used their destroyers as escort ships to defend against enemy aircraft, submarines and torpedo boats, and they were armed with 120 or 152 mm guns, no more than 004 torpedo tubes, specialized anti-submarine weapons and as many anti-aircraft guns as possible. Although they are all destroyers. But the juxtaposition of a German destroyer and a Japanese destroyer gives a glimpse of two completely different eras.

An hour later, a telegram arrived from German spies lurking on Oahu, and the Japanese fleet stationed in Pearl Harbor began to raise fire and anchor, and the frequency of fighter jets taking off and landing at military airfields around the harbor also increased significantly.

After receiving this telegram, von . Vice Admiral Dalvik ordered the "Kemal" to send a group of bombers to attack the Japanese light cruiser, which was still hovering in front of the fleet. Just half an hour later, the German carrier-based aircraft that came into attack reported that they had successfully sunk the Japanese cruiser. At the same time, the destroyer on the right side of the fleet detected an unidentified submarine with sonar. After receiving the flagship's attack signal, three Fish-class destroyers and two Harpoon-class submarine hunters rushed up and beat the submarine with depth charges, but in the time of two cups of coffee, a burst of oil and residue rose on the surface of the sea. - Just when the destroyer fleet, which had been ordered to deploy a cordon in front of the fleet, arrived at its intended position. The German spies lurking on Oahu sent another report that the Japanese fleet stationed at Pearl Harbor had begun to move out of the harbor, and that the operational forces included six battleships and battle cruisers, one aircraft carrier, four armored cruisers, four cruisers, 22 destroyers, and five auxiliary ships.

At dusk, the German destroyer fleet, which had been on alert, shot down two Japanese seaplanes that had come to reconnoitre, and another was wounded and fled in panic. Just half an hour after driving away the Japanese planes, the destroyer fleet spotted a Japanese submarine nearby, and the four destroyers rushed up to make another haibian.

The Japanese submarine was soon sunk to the bottom of the sea forever with its crew.

After nightfall, Feng. Vice Admiral Dalvik ordered the fleet to implement light control and continued to advance in the direction of Hawaii on a zigzag anti-submarine route, and the Japanese fleet that came out of Pearl Harbor naturally disappeared from the sight of German spies and reconnaissance submarines, and the Japanese destroyers, submarines, and seaplanes around the German fleet were moving more frequently than during the day, which was busy with the German destroyers and submarine hunters escorting the fleet, and in one night they actually sank three Japanese submarines, damaged one, and drove three away. In addition, it exchanged fire with three Japanese destroyers in the field of solitary operation and sank one of them.

On this night, the pilots of several heavy and medium aircraft carriers were the most asleep in the entire German fleet, and they were told to sleep with the hatches closed, and all the sounds outside had nothing to do with them until dawn. The four light aircraft carriers in the fleet took on the heavy task of night reconnaissance and vigilance, and the fighters that took off from them constantly drove away the Japanese reconnaissance planes that tried to approach the German fleet at night, but they were limited to the conditions of night operations, and the fighters on both sides failed to give full play to their original technical and tactical level, and the Japanese long-range reconnaissance planes broke into the airspace over the fleet several times, but the reconnaissance gains were obviously not worth mentioning.

The tumultuous night finally ended with the early rising sun in the middle of the Pacific, and the German fleet had sailed less than 320 nautical miles from Pearl Harbor. On the heavy and medium-sized aircraft carriers that turned to headwind, fighters and bombers were neatly arranged at one end of the flight deck, and after a hearty breakfast, the German pilots walked into the cockpits of their respective fighters with full energy, and with the take-off order given, the pilots calmly started the planes and flew off the deck.

Within half an hour, 207 fighters and 152 bombers took off from the six aircraft carriers of the German fleet, namely the "Kemal", "Prussia", "Lorraine", "Joamshi", "Seikendorf", and "Tirpitz", and completed the formation over the fleet.

After the departure of the first wave of attack aircraft, the German fleet continued to move at a speed of 18 knots in the direction of the Hawaiian Islands, and on the six main aircraft carriers, the crew nervously and orderly brought out the fighters and bombers that were ready to be put into the second wave of attack aircraft from the hangars, and the four light aircraft carriers constantly sent reconnaissance planes and fighters to conduct reconnaissance and alert in the airspace near the fleet.

At 8:15 a.m., the German attack aircraft group flew from the north to the sky over Oahu after making a circle, although it was only a small tactical strategy, but it greatly shortened the warning time of the Japanese army, and when the German fighters flew to Pearl Harbor, more than half of the Japanese planes were still staying at various airfields near the port. (Full Text)