Not to mention the terrible tumult in Sacramento, the US river defense forces were moving forward with high spirits above the gunboats. The US navy appeared very early, but since the War of Independence, the US Navy was only quite weak. What really promoted the development of the US Navy was a war. The Civil War had previously focused on development on land, gradually expanding the United States from 13 states during its independence to more than 40 states, spanning the entire American continent, allowing the United States to go from a country that only has the Atlantic Ocean to a huge country across the Atlantic Ocean and the Pacific Ocean.

It was precisely because of the large land area and different cognitions that the Civil War was caused. At that time, in the hearts of the southern United States, the north was not considered orthodox. Since Washington, most of the US presidents were held by southerners. The reason was very simple. The US president at that time was just a position similar to the Secretary-General of the United Nations in later generations. The states had much more independence and autonomy than later generations. They could be called a country in the country. The central government did not even have the right to collect taxes. The US government did not even have enough office funds, that is, the southerners were rich, so most of the presidents were southerners.

However, after the real battle, it was discovered that the strong industrial strength in the north became the key to deciding the situation. In order to prevent the situation from continuing, a large amount of cotton and other products planted in plantations in the south would be sold, and once it was sold, it would be a huge amount of money and materials. The south had only money but no materials. However, through the Atlantic Channel, countless arms could be transported by Britain, France, or Germany.

What the United States and northern China are most worried about is foreign interference. At that time, the United States was inconspicuous in the world. I won’t talk about the world’s largest power like Britain. If a country like France and Germany really wants to interfere, the United States will be in great trouble.

Fortunately, Europe was also in chaos at that time. Although Britain, including the United Kingdom, realized that this was a good opportunity to weaken the United States and made efforts, it was only because the United States in the north and made comprehensive preparations. Modernization war was a war of attrition. The north seized this key point. In order to block the south, it actually built five or six hundred cruisers in one breath in a short time, almost promoting the development of the US Navy with all its strength, and thus laid the overall situation.

I was afraid that the South would have the advantage in the early stage, and famous generals emerged and kept creating victory after victory. But in the end, there was not enough population, not enough industry, and it was blocked at sea. They could win, but not fail. Even if the North failed again and again, they could always regroup. However, once the elite troops in the South were lost, it would be the end. The South would eventually be defeated, and the United States finally appeared in front of the world as a unified country and became one of the strong foundations.

Even if it was just a river defense warship, all the crew had received strict military training and were quite familiar with the gunboats they operated. The location from Sacramento to the bridge was 15 kilometers, or even from the river channel, it was not so far. It took only ten minutes to reach the location of the bridge.

This gunboat is indeed a bad person. They are well-trained and start to use ship guns to clean the floor when they are about three or four kilometers away from the Broken Bridge. They all choose the shore that is more dangerous and may hide the enemy's place. The largest 8-inch gun on the gunboat can only exist like a secondary gun on the warship, and it is even far from qualified on the battleship. However, if it is an ordinary unit, it is a 203mm gun, which suddenly becomes the largest cannon above the army. Even if it is a 6-inch gun, it is also a 152mm gun.

Not to mention that the performance of naval guns is much stronger than ordinary army guns in all aspects. Due to the weight of the army guns, the weight issue must be considered first. They must be light enough to facilitate movement. The same is true for naval guns, but that is for battleship main guns above 15 inches. They are already mature enough to be less than 10 inches, and they can be powerful as they can. Even 15 inches cannons can be made, and there is no problem with the small cannons of six to eight inches.

While the tank was still swaying over dozens of tons, a gunboat was at least one or two hundred tons. This was river defense, and the coast defense could even reach more than 600 tons. It had enough weight to withstand the reaction force of the artillery. The huge roar sounded on the gunboat and then landed on the land. The 203 mm large-caliber naval gun was still high in power, and it suddenly shattered the earth, making the mountain shook, making the place mess and smoke.

The US military is not inefficient and has fired the maximum attack frequency of naval guns, which is enough to prove their professional quality. Unfortunately, it is useless. Within 10 kilometers, Zhou Xing and others have left long ago, and at least they have left the maximum range of naval guns. Even Zhou Xing and the others did not leave directly. As senior officers, as a very outstanding member of the special forces, they know very well how to avoid artillery. They are 3 kilometers away from the river. Walking on the other side of the mountain, leaving behind the mountain, a 200-meter-high mountain is nothing, but it is enough to block the shooting range of gunboats on the water, so that even if they discover Zhou Xing and the others, they cannot reach this side, and this cannot hit them, let alone not find them.

In fact, the total number of artillery of the four gunboats is only 18, even if they are 6-inch or even 8-inch guns. So what? How many areas can they cover? From next to the bridge, within 2 kilometers, the sparse attacks are already beyond their limits. The targets they attack are more likely to affect the crossing of the river or landing site to prevent anyone from sneak attacking inside. The direction they are in is 4 kilometers on both sides of the river and extending 5 kilometers, which is a huge area of ​​nearly 40 square kilometers. This is not something that only 18 guns can cover, even giant cannons, 100 times, or even 1000 times.

For example, on the European battlefield, the Bordeaux front line, on average, there are at least 600 guns per kilometer on the front line. This is still one side. To cover such a huge area, take the 8-kilometer front line, ranging from 5,000 gates to 10,000 gates, so that the guard can be airtight.

In the end, shells fell on this hill because the hill was the most conspicuous place here, but it was quite far away from where Zhou Xing and the others were. They just walked around roughly and did not go deeper, let alone the artillery fire extended.

Even such a drizzle of artillery is not infinite. Artillery has durability. Especially for naval guns, a slight wear will cause the naval gun to lose accuracy. This is not allowed by the navy. Therefore, naval guns are more expensive than army guns, and even naval guns are replaced as maritime defense cannons.

The river defense fleet is not that precious, but it is almost the same. After more than half an hour of bombardment, the gunboat stopped attacking. Without the attacker, it was still an anti-aircraft gun without any human-tracked air guns. In the targeted attack just now, it has been confirmed that there will be no ambushing in the area along the coast of at least 1.5 kilometers. This is enough. They are warships, and they can enter any area along the river channel, but they cannot get ashore. The infantry are on the shore.

Next, the US troops of two companies landed, and they also saw that in addition to the four bridges, there was no luck in their hearts in some other key areas of damage. Compared with the bridges, there was no need to set up more explosives, and there was no need to set up so many. On average, each of the other targets had nearly one ton of explosives. On the land, it was not as eye-catching as the bridges, and it was also very terrible. Several key nodes, even railway hubs, were blown up, and even the United States had the ability to build temporary railway bridges, which had to be repaired.

Moreover, on land, a large number of clues have been seen. The strength of the special forces is compared to ordinary people. They are not superhumans and cannot fly to the sky and the earth. Many of the 12 tons of supplies need to be transported. Even if the special forces are very powerful, each person can carry about 100 kilograms of things, but on the slightly wet ground, the weight of more than 150 kilograms is enough to leave a lot of footprints.

It's not here to commit the crime. This is a war. Before the war breaks out, you need to sneak in secret and not attract anyone's attention. However, when it is in place and the bomb is placed, there is no need to be such a problem. As long as you put the explosives on the target position as soon as possible, as long as you complete this, everything else doesn't matter.

Because there were many traces left, the US military judged the approximate number, which was more than 200 people, but there were no clues for others, let alone the traces of people. The special forces were very careful in everything. In addition to the explosion wreckage left on the scene, there were also traces of the scene. After lightly put, there were very few footprints and other things. At least, for the US military, this is the case. The US military did not search for anything valuable. The two companies that landed in were still a little unwilling to continue searching. Unfortunately, no matter how much they searched, they could not get more things.

From around 9 o'clock, we searched until 12 o'clock in the morning. When the commander of Sacramento could no longer bear it, he sent someone to ask. Only then did he know the result. After searching for a few more hours, at around 3 o'clock in the afternoon, the American soldiers who had come out for most of the day could only return to Sacramento dejectedly. They had no way to continue. This matter was no longer something that their level could handle. They had to wait for the orders of the new stage of Washington before they could carry out the next stage of action.
Chapter completed!