About a minute and twenty seconds later, Major Hadergen saw through the periscope two huge fireballs rising from the surface of the sea, and the sea in the distance instantly became much brighter. Even at a distance of more than 2,000 meters, the submarine felt the huge shock wave from the explosion and swayed in the seawater.

Hadelgen was turning the periscope to turn it towards other targets, only to see another large explosion of the struck freighter in the amidships, a fireball dozens of times larger than the previous explosion of fire rose from the middle of the hull and soared into the sky, forming a huge mushroom cloud.

"Oh my God, we hit a munitions ship!" Lieutenant Esther shouted, and the crew burst into cheers.

Hadergen ordered the broken wreck to be left behind, and ordered the bow to turn around and chase the largest tanker, the biggest target they had seen so far.

"Sir, there are people in the sea, can't I rescue them?" Lieutenant Esther said.

"If it weren't for the fact that American bombers bombed the submarine we were saving people not long ago, I wouldn't mind coming out to the surface to rescue the poor people who fell overboard. It is a pity that now the submarine command has ordered that submarines are prohibited from carrying out rescue during operations. Hadergen said that not long ago, after the German U-147 submarine sank an enemy ship, it was in the tower to rescue the British crew who had fallen into the water, but an American anti-submarine plane attacked the U-147 in spite of the Red Cross flag hoisted on the German submarine.

The U-400 had just turned its bow when it saw smoke and fire rising from the two freighters that were speeding away, apparently also hitting the other submarines of the 101st Squadron. Such are the benefits of practicing the tactics of "pack wolves". The enemy's transport ships were nothing short of a disaster after falling into the ambush circle of the "wolves".

"Well, we are going to sail south immediately and get out of here, the enemy planes will soon arrive here!" Major Hadergen gave orders to the other submarines over the radio intercom, and the entire squadron of submarines threw away the enemy ships and sailors who were struggling on the surface of the sea.

The outcome of this ambush was not bad. Three large ships were sunk in one go, and the submarines were filled with the joy of victory, as if they had just won a football game.

By this time the sky was already bright, and Hadelgentong Guò periscope could see the face of the tanker and the flag on its mast, it was an unlucky American ship!

Over the next three days, the 101st Submarine Squadron sank two more American freighters in the waters off Boston, after which Hadergen directed the entire formation to the southwest, arriving near New York in the early hours of the morning.

New York is the most important economic and commercial center in all of North America and one of only a few megacities in the world with a population of more than 5 million people. As the economic center of the world's largest industrial country. New York has the world's most prosperous urban area, the most modern public transportation system and the most enviable skyscrapers, and many European aristocrats, wealthy businessmen and talents from all walks of life have emigrated to this modern city in order to escape the scourge of war, which made New York a super metropolis that stood out during the war.

It was dawn.

With light snow falling on the sea, the U-400 hovered left and right in the middle of the gray waves whipped up by the sea breeze, staggering at a speed of five knots.

Major Hadergen sat in a chair in the dining room, leisurely sipping his coffee, waiting for the moment of battle to arrive in the dark. Lieutenant Este, the gunner, was removed from the central control room on duty and also came to the dining room in the upper part of the battery compartment at the rear of the submarine. He saw Captain Karn, the first lieutenant, looking at a nautical map with a shoddy cigar in his right hand.

"Hi. Good morning! Esther was greeting Major Hadelgen, who was leaning back in his chair with his head tilted back and not knowing what he was thinking, but just hummed in his throat in agreement.

"Have a cup of coffee and two more onions in the meat, Eric." He said to the head chef. "The bread may have been left out for too long, and it always smells moldy."

"I've been in the submarine for a long time, and whatever food I see on the shore is delicious." Captain Karn put down the map in his hand and said to Esther.

Esther squinted her eyes at the chart, where New York City was like a sweet date sandwiched between several islands. The port has two shipping lanes that lead to the ocean outside. One leads to the north through the Long Island Strait, and the other leads to the south through Guò Lower New York Bay. According to the plan, the 101st Squadron will lurk near the exit of the Long Island Strait.

"Captain, have you heard of the new tactics used by the Chinese in the Pacific?"

"What's wrong?" Captain Karn didn't know what he was talking about.

"They attacked several Japanese ports with rocket artillery from submarines, much like the actions of surface assault ships." Esther held out a finger and swiped it along the map. "They took advantage of the darkness to approach the enemy's harbor and then attacked the enemy's harbor with artillery, and achieved very good results."

Karn turned his bearded face to Esther, curled the corners of his mouth with a strange sneer, and said, "Oh, Lieutenant, are you dreaming of a new promotion, I don't think we're going to have a chance to attack the Americans' well-defended port. ”

"But the Americans' harbor guards are very lax!" Esther said, picking up the bread on the table and taking a big bite.

"Makes sense, we might be able to take the plunge!" Major Hadergen suddenly opened his eyes, "Hasler, go to my room and get the coastal navigation book." He said to the signal corps standing in the passage.

Woo-wow! Wow! Wow!

At this time, the combat alarm in the submarine suddenly sounded.

"What's going on?" Major Hadergen quickly crossed the passage and returned to the command room.

"The radar detected a low-flying enemy aircraft, maybe just a seagull." Sergeant Chaisler, the chief engineer on duty, said, "That plane is flying low, we need to dive!" He said as he put away his periscope.

"Alright, let's dive down to 30 meters now and keep our current course!" "The sun is coming out anyway, and we need to spend a day underwater!" ”

"Yes, sir!" Chaisler agreed.

Signal Soldier Hassler staggered through the aisle ahead, and Hadergen took the U.S. Coast Navigation Manual from his hand and returned to the dining room.

"I'm going to give it a try!" He put the navigation manual on the table and said to Lieutenant Esther.

"Try what?"

"Your idea, last month the Americans sent their bombers to attack Berlin, which made the emperor so angry that he ordered the newly formed strategic bomber force to bomb the United States. It's a pity that Admiral Udet said that our bombers could not fly to the United States, and the Americans took off from the British base. Hadergen said that British and American bomber forces began to carry out night bombing in Germany, and although they suffered heavy losses under the tight defense of the German air forces, with little success, they did drop some bombs on German cities, especially in the last month, when sixteen American and British bombers attacked Berlin, and although the enemy eventually lost nine bombers, it did cause Wilhelm II to lose his temper.

Now, the time has come to take revenge on the Americans, and this may be a moment to make a name for yourself in one fell swoop.

Hadelgen made up his mind and began to carefully study the charts and directions of navigation, and he prepared to surface and use the large-caliber rocket artillery equipped on the submarine to carry out a retaliatory operation against the United States. (To be continued......)