After dawn, the Tang Army Aviation Units deployed in the northeastern part of Dongfang Province made frequent sorties in accordance with the operational plan of the Supreme Command. The long-range reconnaissance plane unit conducted a large-scale search of the eastern and southern waters of the mouth of the Beida River (Amazon), while the high-speed reconnaissance planes with a relatively close range ventured to reconnoiter the waters north of the estuary.

The Army Air Corps sent six squadrons of bombers, under the cover of fighters, to attack the approaching East Francian fleet, resulting in several heavy air battles between escort fighters and European Union Air Force fighters taking off from St. Louis.

As the East Frankish fleet approached the battle area at the eastern corner and was discovered by the Tang reconnaissance planes that had come from the alert patrol, and the land-based bombers of the Tang Army Air Force were dispatched, the fighters of the European Air Force changed from interception to escort.

Hundreds of warplanes from both sides first broke out in several naval and air battles.

At the same time, in the waters northeast of Xinquan (El Salvador), a Tang task force consisting of two aircraft carriers, four battleships, four cruisers, and 12 destroyers was sailing at a cruising speed in the northeast seas.

On the battleship "Huashan", the flagship of this fleet, Admiral Ding Guozhen, commander of the South Atlantic Fleet of the Tang Empire, was chatting with his chief of staff, Vice Admiral Li Zhun.

"As expected, the Franks will soon make a move on the East Point." Li Zhun said as he looked at the briefing telegram he had just received from the command of the East Cape Fortress (Port Nadal) to the Navy.

"Let's not be in a hurry to do it first, let Lu Hang fight them for a while." Ding Guozhen said that he was also amazed at the accuracy of the imperial intelligence services, "Let these 'Americans' be bombed several times, and they will have to suffer a little before they can understand the essence of Europeans." Of course, when they fought with the army air, it was also when the enemy's fleet was most lax. They would only stare at the warplanes that took off from land, how could they have imagined that there was one of us following behind. ”

"Haha, a very vivid analogy, I think when our bombers appear above the heads of the enemy, the expression of the Europeans must be very wonderful!" Li Zhun laughed loudly, today it was finally their turn to show their majesty.

At noon, the East Francian fleet arrived near the East Cape naval base, and at 13:56, the "Brittany" opened fire first, and then the 14-inch heavy guns of the four battleships of the T fleet began to shell the East Cape fortress.

At 14 o'clock, the turrets of each 130-mm auxiliary guns in the stern of the "Lorraine" also began to fire heavily at the harbor, and the enemy cruisers also began to fire at the harbor. In the port of Dongjiao, the cruisers "Zhanjiang" and "Zhenjiang" were shot several times, and the main gun of the "Zhanjiang" No. 4 was hit by a 13-inch shell, and then thick smoke rose everywhere, and then it struggled to sail out of the shallow water of the port for a distance, but fortunately, the water depth at the shallow water in the port was only less than 10 meters.

Several 8-inch fortress guns of the harbor fortress battery were firing back at the sea, and when the East Frankish fleet and the fortress garrison were engaged in a fierce battle outside the military port, no one thought that eight Tang submarines had quietly infiltrated the East Frankish fleet's warning circle.

As we all know, during the two wars, the submarine forces of the Tang State were all underwater weapons that made the European allies feel terrified, and in fact, the submarine forces of the West Frankish Navy did not achieve bad results, and their performance was also excellent, but because the number of equipment was too small, it was not so conspicuous.

At present, there are already three Tang submarines that have entered the ambush circle and are ready to attack, and these three submarines belong to the "Han River" class submarines, which are large ocean-going submarines with a displacement of 1,200 tons on the water, and are equipped with a total of eight torpedo tubes in the front six and two in the rear.

This is a submarine with very good performance.

"Sir, we've arrived at the designated location!"

The Tang submarine SMU113 was quietly diving underwater, with a speed of only 4 knots, and the captain on the boat had been calculating according to the submarine's course, speed and time against the navigation chart, and they had been sneaking underwater for nearly 3 hours, and had broken through the anti-submarine patrol circle composed of several old destroyers deployed by the British on the periphery.

Through the thin hull, Captain Li Haiming could hear the sound of water tumbling around the hull, as well as the high-pitched, faint, but heart-wrenching echo from the adjacent sonar room. As a veteran submarine commander who started as a torpedo officer and has been a submarine for five years, he is all too familiar with this kind of voice. At present, the echo ranging sound is different: it is higher and sharper, it flutters more violently, and it has a special timbre.

This means that they are very close to the enemy.

The submarine was moving quietly, and the air inside was suffocating.

"Slow down, keep course!" Sitting in front of the periscope platform, Captain Li Haiming, who had a little beard on his chin, shouted to the microphone leading to the engine room, "Listening to the voice, the other side seems to have a large number of them, let's do it and retreat immediately." He turned his head to the deputy captain on the side, Captain Jin Jianjiang, and then he shouted to the chief engineer, "Yang Yi, go up to 15 meters, don't be taller, do you hear?" 15 meters. ”

"Dive up to 15 meters, yes, sir!"

"Dive up to 15 meters!"

At the command of the chief engineer, the horizontal helmsmen spun the steering wheel rapidly, and the bow of SMU 113 cocked and began to slowly rise from the water. The index on the depth gauge was constantly decreasing, and the sound coming from outside the boat was even louder: the ping-pong of the sonar, the clatter of the propellers, now obvious, the sound was coming from the front.

"Fifteen meters, sir."

"Good. Now, Yang Yi, listen carefully. I'm going to raise the first periscope, and you're going to slowly get to periscope depth. Captain Li Haiming's voice was low, but resolute, "Just like we usually practice, float 30 centimeters, dive for two minutes, float another 30 centimeters, and then sail flat...... You have to keep the hull in a horizontal firing state all the time, you know? ”

"Understood, sir!"

The depth of the periscope is 11 meters 5 to 12 meters underwater, which depends on the sea conditions on the sea.

The submarine slowly floated under the water, little by little, "Good! Keep it high! That's it! After about 15 minutes, Captain Li Haiming raised his voice, his voice was very loud, and he seemed a little fanatical, "Good boy! Lots of big fish, oh my God, they're fighting! Remember, the leading edge enters the starboard side of the corner 43 degrees, a distance of 1200 meters. Quick, lower the periscope! ”

There was silence in the boat, except for the crackling sound of the sonar speakers.

"How much draft does the aircraft carrier Ramance have? There's a destroyer next to it, and I don't want to be held back by any kind of gadget. Li Haiming took his eyes off the eyepiece and looked at his deputy captain and said.

"9.7 meters." Jin Jianjiang said with great certainty.

"Okay, 6 meters deep, bow torpedo tubes ready! Deflect 2 compass points to the right. ”

There was silence in the command cabin, and there was silence in the entire boat. Now everything came from the outside of the boat, the noise of the machines, and the sound of the sonar of the British destroyers as they explored.

The attack is about to begin.