.When the German declaration of war was submitted to the US government, it happened to be 12 noon on July 7, ET.

After returning to the German Embassy in Washington, German Ambassador Wernaplier sent the last clear telegram from the embassy to Berlin: The mission has been achieved, the war has officially begun, long live the empire!

After that, Werner hurriedly left with the embassy staff. The German diplomats stationed in the United States will leave the United States on a neutral ship within three days, and the American diplomats stationed in Germany and the American diplomats and envoys stationed in Germany will also leave Germany within a limited time.

Just half an hour after the United States received the German government's declaration of war, the Mexican government immediately declared war on the United States. The reason was very simple. The Mexicans wanted to recover the land they lost more than 70 years ago.

Despite having little psychological preparation for the German government's declaration of war, US President Warren, Harding and his staff quickly came back from the huge shock: the Germans have declared war, and the current situation is irreversible. In Guadeloupe, less than 2,000 nautical miles from the east coast, the main fleet of the German Navy has already gathered and stood on standby - why did the huge escort fleet stay there for more than a month? I'm afraid it's this moment! In Mexico, which is adjacent to it to the south, 400,000 German troops and 700,000 Mexican troops have gathered to the border. They are not here to do some bullshit exercises - that is clearly an organized and premeditated offensive preparation!

Apart from that, is there something worse?

Warren Harding suddenly remembered Secretary of State Charles Hughes, who was still in secret talks with Japanese top leaders in Tokyo, and the Japanese government that had been ready to move. Before today, he always felt that using the Philippines and Hawaii as bargaining chips to exchange for peace in the Japanese would only make the greedy nation's appetite bigger and bigger. But now, when the situation of fighting on both sides is about to be before him, Warren Harding felt so scared for the first time in his life.

"Send a telegram to the Secretary of State, asking him to stop the Japanese from joining the German side no matter what! At all costs!"

At this time, he was still thinking about the Pacific situation, and it has to be said that Warren Harding's overall view is pretty good. But when he summoned the generals of the army and navy to the White House to discuss how to deal with the possible attacks of the Germans, it was already an hour after Germany submitted a notice of war. Before that, radio waves had already been transmitted from Berlin to Guadeloupe and Mexico, and the long-planned "Titan Plan" officially began!

At 1 p.m., at the military airports of Simenez, Madeira, Keno, Pareton and Linares, Mexican war eagles flew into the air one after another. Most of them were German fighters painted in silver and gray, and some were Mexican fighters painted in dark green. In the blazing sunlight, hundreds of fighters, attack aircraft and bombers took off from these airports one after another and flew towards the U.S. border in three waves.

The first wave were the 6 fighter squadrons of the 4th Fighter Wing of the Luftwaffe, the 4 attacker squadrons of the 11th Fighter Wing and the two fighter squadrons of the Mexican Air Force. After taking off from their respective airports, 96 Junkers-Henkel D-type fighters, 54 Messerschmier-squadrons of the four Fighter Wing, 25 Vulture D-type attack aircraft, 75 Vulture D-type attack aircraft and 50 Mexican fighters completed the formation in the air, and then according to the scheduled plan

Flying towards their respective targets - Currently, the US Army mainly has three large military airports, 11 small and medium-sized military airports and 5 airship berthing bases on the southern border side. According to the previous reconnaissance report obtained by German reconnaissance aircraft into the United States, these 14 military airports 100 to 300 kilometers away from the border have a total of 280-320 aircraft and 75 to 80 airships. These are also the first-line aviation forces deployed by the United States on the southern border.

A half hour away from the first wave of aircraft is a second wave of attack group consisting of three German fighter squadrons, two German attack aircraft squadrons and four German bomber squadrons. The fighter squadrons are still mainly composed of Junkers-Henkel D-type fighter. The main fighter was tested in June 1919. Mass production began in September of the same year. During the South American War, two fighter squadrons equipped with the fighter went to Chile to participate in the battle and successfully assisted the Chilean coalition forces in seizing battlefield air supremacy. As the name suggests, this fighter is famous

The military aircraft designer Dr. Juncker and Dr. Henkel jointly designed it with a wingspan of 12.4 meters, a length of 9.3 meters, a height of 4 meters, a maximum take-off weight of 2.6 tons. It is equipped with a 700-horsepower water-cooled engine, a maximum speed of 420 kilometers per hour, a secondary fuel tank, a maximum range of 800 kilometers, and is equipped with 6 7.92 mm machine guns. It has armor protection and uses a fully enclosed bubble cockpit. Its performance is basically at the level of the main fighter jets in the early 1930s, which is slightly inferior to the famous hurricane fighter jets.

Among the 15 fighter squadrons deployed in Mexico, the Messer Schmitt D-type fighter jet accounted for 1/4. It is a brand new main fighter jet. It was tested in July 1923 and mass production began in December. It is currently mainly equipped with the Luftwaffe and Army aviation forces. By the time the outbreak of the German-US war, there were 278 aircraft. Surprisingly, the designer of this fighter jet was actually a young man named Willie Messer Schmitt. This young man born in Frankfurt, Germany in 1898 has been a glider enthusiast since he was a child. He made an all-metal glider when he was in middle school at the age of 15 (historical facts), showing that

He developed his talent in aircraft design. After graduating from high school, Messerchmitt entered the Department of Mechanical and Electrical Appliances of the University of Munich. Even during the intense study, he was obsessed with aircraft design and used it as his graduation thesis defense. After graduating from university, Messerchmitt was originally planning to establish his own aircraft manufacturing plant. At this time, Dr. Junkers, the head of military aircraft design of Jiji Airlines, came to his door personally. At this time, Junkers was already a well-known master in Germany. Messerchmitt accepted this fantastic invitation very happily, and Junkers would bring this priceless treasure back to his design room with a mission.

Soon after, the Messerchmit D-type fighter was introduced. Although this new fighter drew on many experiences of the Junkers-Henkel four-type fighter, it became a major fighter completely different from the Junkers-Henkel D-type fighter with the clever ideas of Messerchmit himself. The Messerchmit D-type fighter adopts a cantilever single-wing design and retractable landing gear. It adopts more linear shapes in appearance. In terms of structure, it uses high-strength thin aluminum plates and precision die-cast versions. The reinforced fuselage can withstand high-speed dives and rapid lateral rolls, with a wingspan of 10.5 meters and a captain of 9.

4 meters. The aircraft is 2.8 meters high and has a maximum take-off weight of 3.1 tons. It uses a 750-horsepower inline water-cooled engine with a maximum speed of 450 kilometers per hour. It can be equipped with a secondary fuel tank and a maximum range of 850 kilometers. It is equipped with a 20mm cannon and 4 7.92mm machine guns. Its firepower is the same as that of the Henkel DD carrier-based fighter, but its combat performance is one level higher. This has been proven in the joint exercises of the German Army and Navy. For this reason, the Navy has asked Messer Schmitt to design a carrier-based fighter with similar performance to the Land-Boyed Messer Schmitt for the Navy.

In the Luftwaffe, in addition to the above two main fighters, there is currently a large-scale single-wing twin-engine long-range fighter called the Black Hawk DD. The aircraft was designed and completed by two Dutch designers from Jiggi Airlines, Dr. Billing and Dr. Scharters. It was tested in October 1921 and mass production began the following year. Its volume is close to No. 1 larger than Junx-Henkel Four, with a wingspan of 15.7 meters, a length of 12.8 meters, and a height of 4.2 meters. It uses two 800-horsepower Mercedes-Benz engines. The maximum speed is 390 kilometers per hour, and the range when loading the secondary fuel tank reaches 1,150 kilometers. It uses 2 20mm machine guns and 4 7.92-blast machine guns as airborne weapons. The maximum take-off weight is 5.4 tons.

According to the information collected by German spies before, the best fighter jets in the United States are the PW-9 fighter jets produced by Boeing and the Codys P-7 fighter jets. Among them, the Boeing PW-9 has two models with very different appearances, namely the PW-9a and the PW-9b. The A type is a biplane. It uses bolted aluminum tubes to form the fuselage structure. The fuselage is small and compact. It uses a 450-horsepower air-cooled engine with a maximum speed of 310 kilometers per hour. The fuselage can be used to provide a fuselage structure.

Hanged in a 200-kilogram aviation bomb; the B-type uses a shoulder-mounted single-wing and aluminum hard-shell fuselage, and uses a 500-horsepower air-cooled engine. The maximum speed is 25 kilometers faster than the A-type, but the bomb mount under the fuselage is cancelled due to limited lift. Both fighter jets have a range of 480 kilometers, not only equipped with the U.S. Army, but also equipped with the Navy Department. Their naval models are named f4a and f4b, and the tail is equipped with a ship-use interceptor hook.

Compared with Boeing's fighter jets, the Codys ground fighter jets borrowed more from the design of German fighter jets. Since the Junker-Henkel 4 appeared in the South American battlefield, the designers of the Codys began to study this strange appearance based on the pilot's description. In the years after the war, they had a further understanding of this German fighter jet through scattered data collected by the Army Intelligence Department, and in 1923, they launched the first cantilever single-wing aircraft in the United States. This fighter jet uses an all-aluminum hard-shell fuselage and a retractable and drop-off.

The aircraft has a length of 12.3 meters and a wingspan of 17.7 meters. However, due to the insufficient power of the 600-horsepower star engine, its speed is only 280 kilometers per hour. Although its 12.7mm machine gun and 1 7.62mm firepower are stronger than the two 7.62mm machine guns of Boeing's two fighters, the US military seems to be concerned about its novel design, slow speed and expensive price. Therefore, the Army and Navy only ordered 25 and 21 respectively, far less than the 120 and 150 ground-based fighters of Boeing.

In addition, the US Army and Navy were equipped with hundreds of p-3, p-4, p-5 and other fighter jets developed and produced earlier. The US generals firmly believed that their airships would undoubtedly seize absolute air supremacy in local defense wars. By 1924, the US airship technology was indeed unmatched in this world, and even the Germans who were the first to use airships on a large scale in the war had to take a disadvantage. Despite this, 35 German airships came to Mexico from a distant Europe, and they were also regarded by the US military as the number one enemy in the air.

However, even in the Germans' third air attack group, there is no trace of airships. Two fighter squadrons, one attack aircraft squadron and six bomber squadrons will conduct low-altitude bombing on US airfields, oil depots, barracks, railway hubs and other military targets after the first two attack groups suppress the US air and ground resistance, in order to achieve the combat purpose of quickly seizing front-line air supremacy.

Just as the fleet that took off from the frontline airport was preparing to attack its target, one large bomber after another was also taking off at the airport in San Luis Poto. This single-wing four-engine Donier DD long-range bomber was designed by Jiji Airways bomber design department in 1922. The prototype began to test flights in April of the following year and mass production began in November. The current output is 50 aircraft per month. With the implementation of the Titan Plan, this speed will also be increased by at least ten times.

When the attack aircraft group departed from the frontline airport began to attack, 5 squadrons of 125 Donier DD long-range bombers completed assembly over San Luis Poto. These wingspans were 32.2 meters, 21.6 meters long, and 5.2 meters high behemoths were slightly smaller than those of the German Owl Bombers and the Russian Ilia Murometz Bombers in the era of wooden skins, but their performances have far surpassed the ancient double-wings.

The aircraft, especially thin armor and 12 7.92mm machine guns arranged in six twin-mounted turrets respectively make this aircraft far surpass any bomber of its era in defense. With 4 high-power engines of 800 horsepower, the Donier DD can cruise at 280 kilometers and throw 4 tons of bombs to a target 3,200 kilometers away at a speed, and the maximum speed can even reach 320 kilometers per hour.

At this time, the Americans obviously did not have any interest in this long-range strategic bomber. Perhaps in the eyes of these self-righteous guys, the giant airship is far stronger than the so-called strategic bomber in terms of range, bomb load and visibility. Perhaps even the ancestor of military airships, Earl Zeppelin, did not expect that the Americans would be more devout than the Germans for their inventions.

It won't take long to find out how huge the mistakes they have made - a Doniel DD bomber is only 1/3 of a large hydrogen airship and 1/20 of a helium airship, but it can bomb the target more than 4 times during the airship's bombing, and is far less affected by the climate than the airship.
Chapter completed!