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At 7:30 a.m. on February 27, more than 100,000 people from the 49th and 50th armies of the U.S. Army set out from Tira Cororada and attacked eastward, preparing to break through the squadron's interception in the east and reopen the connection with Chilpansingo, which was directly related to whether the U.S. troops in Tira Cororada could break through the encirclement of the squadron and escape safely.

When Lieutenant General Clark convened an emergency meeting of the American generals, Chilpancingo's American command also received a telegram from Lieutenant General Clark's order. When the communications officer translated the telegram, the whole telegraph room was in an uproar.

"Oh God! Are Lieutenant General Clark going to be finished? The Chinese actually cut off their retreat! The U.S. officers in the telegraph room were talking. The fiasco of the US airship unit has cast a shadow over the hearts of the US officers. But they didn't expect that the squadron's movements would be so fast, directly cutting off Lieutenant General Clark's back road, which is completely the rhythm of encircling and annihilating more than 300,000 American troops in Iron La Corollada!

"You keep guarding, I'll report to the general!" After the communications officer in the telegraph room finished speaking, he picked up the telegram and hurried to Admiral Pershing's office. These days the fighting is getting more and more intense, and General Pershing has no time to return to his residence, so he directly sets up a marching bed in his office. By the time the communications officer arrived, General Pershing had already gotten up and was eating a breakfast. Breakfast was simple, just a glass of milk and a slice of bread.

"General, there is an urgent military situation to report to you!" The communications officer said nervously.

"What's the situation?" Admiral Pershing put the last bit of bread in his mouth, chewed it a few times, and swallowed it before asking.

"General, General Clark has telegraphed that the squadron had captured that little basin east of Ironra Colorada last night. Severed the link between Irona Corolada and Chilpancingo. The Chinese obviously want to encircle and annihilate our army in Tiela Cororada! Lieutenant General Clark has begun to organize troops to attack the Chinese, preparing to break through the Chinese blockade. He hopes that we will be able to send a strong force here to support their operations as well! Said the communications officer.

After hearing this, Admiral Pershing's brows were already furrowed. The glass of milk in his hand was also put back on the table, and he no longer had the slightest appetite. The emergency military situation reported by the communications officer made him very worried that if the American army commanded by Clark was wiped out by the Chinese, there would be a huge hole in the defense line of the South Madre Mountains of the American army.

"I see, you go down first. Keep in touch with Lieutenant General Clark! Admiral Pershing said with a calm face.

"Yes, General!" The communications officer saluted and turned away.

"Someone, go get General Davis!" Admiral Pershing ordered.

Soon, the orderlies brought Lieutenant General Davis to Pershing's office. It's just that Lieutenant General Davis's face is also a little ugly. He also saw the crisis that the US military was now facing. If Lieutenant General Clark's forces were to be severely damaged or even wiped out, they would not have enough troops to defend Chilpansingo!

"General, we must immediately organize troops to cooperate with Lieutenant General Clark, once Lieutenant Clark's efforts fail, and the army is surrounded and annihilated by the Chinese, our losses will be great!" When the time comes. I'm afraid we won't be able to hold the Madre do Sul line anymore! Lieutenant General Davis said.

Admiral Pershing nodded, and then said: "In this way, you personally lead the 16th Army and the 44th Army to attack the Chinese from the east." Cooperate with Lieutenant General Clark and strive to break through the blockade of the Chinese! ”

"Yes, General! But, general. We have to prepare for the worst, if it fails. What to do with Chilpancingo's defense? Lieutenant General Davis said.

"I will order the rest of the troops to speed up their build-up towards Chilpansingo. In addition, I will ask for reinforcements to arrive as soon as possible. By the time reinforcements arrive, we'll have plenty of troops! Admiral Pershing said.

"Okay, General, then I'll go and gather the troops immediately!" General Davis said, then turned and left Admiral Pershing's office.

Admiral Pershing watched Lieutenant General Davis leave, his eyes full of worry. The last thing he wanted to see happened anyway. The U.S. army had already lost nearly 200,000 troops in Hartian Gis before, and the number of troops sent to Tierra Coronada was as high as 500,000, and if all these troops were lost, plus the troops lost elsewhere, the U.S. army's losses would be as high as one million. The four or five hundred kilometers long defensive line of the Sierra Madre do Sul will be porous due to the lack of troops. It was already very difficult to hold the southern Madre defense line under the fierce attack of the Chinese. And once the Chinese break through the defense line of the Sierra Madre do Sul, the central plains and northern regions of Mexico, it is impossible for Gen to resist the attack of the Chinese. At that time, the hinterland of the United States will be threatened by the squadron, and all the battlefield advantages that have been hard won since the start of the war will also be lost. The final result will also lead to the fact that the United States is likely to lose this war!

Admiral Pershing immediately drafted a telegram reporting to the United States the problems that the U.S. military was facing, hoping that the country would send more troops into Mexico to fight, and at the same time, he also proposed that the United States build a defensive line in the border area with Mexico to prepare for a squadron attack on U.S. soil. In addition, Admiral Pershing ordered the U.S. forces in the Southern Sierra Madre defense line to begin to shrink and prepare to strengthen the U.S. defenses in Chilpansingo. This is the core of the entire defense line of the US army, once the Chinese capture Chilpancingo, they can threaten central and northern Mexico, and then drive straight into the southern hinterland of the United States!

Tiela Corollada, when Lieutenant General Clark ordered the American troops of the two armies to start an offensive to the east, the Seventh Army of the Chinese Army and the Japanese mercenaries were also ready for battle. According to the previous plan, the 2nd Army was responsible for blocking the eastward escape of American troops, as well as the reinforcements of American troops from the direction of Chilpancingo. The 7th Army and the Japanese mercenaries were responsible for destroying all the remaining US forces in Tierra Cororada. This battle is very important for the Mexican battlefield, and if it wins, then China will regain the initiative on the Mexican battlefield. It will also help China defeat the United States in the next war!

At half past seven in the morning, the artillery of the Chinese Army began to carry out heavy shelling of American troops. Although the artillery of the 2nd Army had all left, only more than 300 artillery pieces of the 7th Army remained. However, the U.S. artillery had already been completely lost in the continuous bombardment by the Chinese Air Force's airship units. Among the troops of the U.S. Army in Tierra Cororada, there are only more than 200 cannons of 105 mm caliber or more, and the rest are some small-caliber artillery. In addition, when the 49th Army and the 50th Army of the U.S. Army attacked the 2nd Army of the Chinese Army, they took away most of the artillery, so that the defenders of Tila Corollada were unable to fight back for a while in the face of the fierce bombardment of the artillery of the Chinese Army.

"Order all departments, hold your position, once you can no longer let the Chinese break through our position!" Lieutenant General Clark ordered with a grim face. He knew that this time the squadron would not stay any longer, and if the American troops could not reach the squadron's attack, then what awaited them would be total annihilation.

The shelling lasted less than half an hour, and the US Army's Heights 2 and 3 were the main targets of Chinese artillery. As long as these two heights are taken, the American troops in the city of Tyrana Colorada will have no power to fight back.

"Rush!" In order to conquer the remaining two heights of the US army, not only the Japanese mercenaries launched a fierce attack, but the 7th Army of the Chinese Army also sent two infantry divisions to focus on attacking the No. 3 high ground of the US army.

Heights 3 is located south of Tierra Cororada, at a higher altitude, but relatively far from the battlefield. With the No. 1 high ground already under the control of the squadron, the U.S. troops in the urban area of Tiela Corollada did not dare to counterattack and could only defend it. The 32nd and 33rd Divisions of the 7th Army of the Chinese Army could bypass the city and launch a fierce attack on Heights 3 with artillery support. Heights 2 were handed over to the Japanese mercenaries to attack.

"Boom, boom!" Dense shells fell on the No. 3 high ground of the US army, and the US officers and men guarding the high ground huddled in the trenches and shivered. Although Heights No. 3 was not the main bombing target in the previous bombing by the Chinese Air Force, most of the fortifications on the heights were destroyed during the bombing for several days, and many of the anti-artillery holes and tunnels were also blown up, which made the situation of the US troops on the heights very dangerous.

At 8:10 a.m., the 321st Regiment of the Chinese Army, as the first wave of troops, launched an attack on the No. 3 high ground of the American army. The soldiers bent their waists and attacked the top of the hill in a sparse skirmish. The altitude of Plateau No. 3 is as high as 1,000 meters, and the relative altitude is more than 500 meters, and the US military fortifications are all deployed on the mountainside. In addition, there are no smooth roads leading to the mountains, most of them are just sheep's intestine trails, or directly through the dense forest. However, although this made the squadron more difficult to attack, it also provided them with protection on a certain distance.

The fierce battle for Tiela Coroda was in full swing, and at the same time, the US 49th and 50th armies from Tiera Coroda also began to attack the 2nd Army of the Chinese Army. Although the 2nd Army of the Chinese Army built fortifications in the small basin overnight, the time was too hasty, and only fortifications and artillery positions were built, and most of the soldiers could only hide in trenches or foxholes. Fortunately, the squadron's artillery had an advantage, and the US troops could not use artillery fire to inflict heavy casualties on the squadron!