Since the Civil War, the United States has begun a history of rapid development, and after making a fortune during the two world wars, the United States is now the undoubted number one power in almost all aspects such as economy, politics, and military.

Taking military spending as an example, the United States alone sometimes spends more on its military than all other countries combined. During the Cold War, there were as many as 5,000 overseas military bases.

Even now, the United States has hundreds of military bases in 140 countries around the world, with 300,000 troops stationed there.

In all the wars after World War II, the demise and rise of all countries, the United States can be found as the "world policeman".

Although China's comprehensive national strength already ranks second in the world, if it is compared with the United States, it will only pass. If Ou Meng is a country, it is only eight points of the strength of the United States.

The United States has become so strong that of course, all kinds of causes and circumstances are indispensable, including both personal struggles and historical processes.

Only the geographical and environmental conditions can be called unique.

The land area is roughly the same as that of China, but the plains are more vast, the arable land area is the largest in the world, the climate is pleasant, the resources are abundant, and the water storage of the Great Lakes accounts for 1/5 of the total freshwater lakes in the world......

With such congenital conditions, isolation from the rest of the world, and far away from many disputes in Europe and Asia, it is normal for the United States to become the number one in the world.

Looking at it this way, although the United States is enviable, it really has nothing to boast about. It's like, as long as they are not fools, the descendants of local tyrants are still local tyrants.

On the other hand, the advantages of the United States are not without harm, at least, if any alien is ready to invade the earth, the United States will definitely not be able to escape......

Flying directly from Qingnan Airport to Washington, Lin Han was immediately invited to the White House banquet.

The Trump family, some White House officials, and of course, those reporters in the West, Lin Han talked and laughed with them.

After the White House entertained him, Sonny Perdue, the former governor of Georgia and the current secretary of agriculture, also came to Lin Han to discuss some issues related to the cleanup of invasive species such as Asian carp.

Within a few days, Lin Han led people to Lake Yili, one of the Great Lakes, and the first batch of nitrogen ice containers were also under strict supervision and were transported.

……

A fortress-like square edifice sits quietly on Pennsylvania Avenue in Washington, D.C., the headquarters of the FBI.

Unlike the CIA, the FBI, which was created by the orders of President Roosevelt Sr. more than 80 years ago, is mainly active in the United States, responsible for domestic intelligence, and is subordinate to the U.S. Department of Justice.

In addition to the CIA and FBI, the United States also has an intelligence agency, the NSA, or the National Security Agency.

Compared with the first two, the work of the National Security Agency is more technical, such as the "Prism Project", an electronic surveillance program that was exposed by Snowden, which is in charge of the National Security Agency.

At this moment, the FBI, the office of the director.

Director Christopher Ray was sitting at his desk, looking at a thirty-year-old brown-haired man standing in front of him, with his hands on the table, and said, "Lin Han has now arrived at Yili Lake, have you found any useful information?"

Lin Han and his entourage did not find any clues for the time being...... However, yesterday morning, Vientiane airlifted a batch of items from Yunzhou, Huaxia, which should be the tools they use to clean up invasive species. The brown-haired man said.

"What exactly?" asked Ray.

"Hmm...... It's not clear. The brown-haired man muttered, "There are many professional security personnel accompanying me, and the protection is very tight. After our investigation, they were all senior employees of Vientiane Security Company, and most of them were retired from the Huaxia Special Forces, so it was difficult for us to get close to the investigation. ”

Ray thought for a moment: "Is there a photo?"

The brown-haired man pointed to the file on the table: "There is a photo on the penultimate page, but it is not clear. ”

Ray flipped to the penultimate page of the document and frowned.

I saw that what was printed on it was a scene taken from a distance: several men in black with sleek bodies were carrying wooden boxes from the plane, the wooden boxes were the size of a single bed, and I didn't know what they contained.

"That's it?" Ray couldn't help but ask.

"Yes, that's all we have now. ”

Lei put down the file, took a deep breath, and said after a while: "Continue to closely monitor Vientiane's movements, at least to know what is in this wooden box." ”

"Of course, we also need to find out what the secret of Vientiane is. ”

……

Northern Pennsylvania, on the shores of Lake Erie.

Because of the Asian carp epidemic, the U.S. government has tried everything it can to power grids and dams, but with little success.

Nowadays, even in the waters of the Great Lakes, you can find a large number of Asian carp, and most of them are quite large.

This location of Yili Lake happens to be the most serious area of grass carp inundation, and as soon as Lin Han and the others got out of the car, they could see grass carp jumping out of the water from time to time.

"Plop!"

A straw carp with unusual fat suddenly jumped out of the water, churning into the water, splashing a wave that caused everyone to exclaim.

Many people held up their phones to take pictures and talk about it.

"I'll go! It's such a big one, it's estimated that it's fifty pounds!"

"It's a pity that dozens of catties of big fish can't be eaten. ”

"In the video I watched on the Internet before, as long as I drove a boat around it, I could jump on a dozen big fish. ”

When everyone took a closer look, they saw that all of them were fat grass carp swimming and churning in the water, the smallest one was three or five catties, and the one as big as fifty or sixty catties could occasionally be seen.

"Try throwing a loaf of bread. A young man had a small half piece of bread in his hand, and after he finished speaking, he threw it directly into the water.

"Wow!!"

The nearby water seemed to explode, and the fish rushed like tigers, and the small piece of bread disappeared in a blink of an eye.

Looking at the many huge grass carp swimming in the water, everyone couldn't help but be stunned.

"This ...... This is clearly a herd of beasts in the water, it's terrifying. ”

"How do I feel, as if a person can be torn apart if he falls?"

While everyone was talking, Lin Han also watched the lake for a while, and then clapped his hands: "Okay, let's get to work." ”

In addition to the person responsible for throwing nitrogen ice, there are also several scientific researchers, mainly collecting samples of Asian carp and water bodies to investigate the nearby ecological environment.

After Lin Han finished speaking, everyone began to work in twos and threes, scattered around the lakeside.

At the same time, two tall Vientiane Security Company employees also entered the truck without saying a word, and after a while, each got out of the truck with a white foam box and walked straight to the water's edge.

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PS: I recommend a documentary "The Man Who Made America" (The_Man_ho_Built_America).