Submarine is a unique kind of combat vessels, which comes and goes without a trace and moves secretly. It's called the "underwater wolf". The combat effectiveness of submarines comes from the fact that they are not easy to be found and attacked underwater. However, submarines can approach the target unconsciously, launch torpedoes and act as "assassins". However, the submarine's powerful lethality is based on its high-risk activities. Submarines are potentially underwater, which can be said to be in danger at all times. Any small omission may cause the submarine to collapse. After a submarine breaks down, it often needs to be sent out by floating, but once it floats, it is vulnerable to attack, so submarines should generally avoid floating in action.

Submarines generally float because of several different situations. First of all, the surrounding security, no need to dive. Submarines can choose to float. The second is that non-AIP submarines will choose to float when they need air supply. The third is that it needs to float when passing through other countries' waters to show no hostility. Fourth, because of a fault, it must float.

In submarine attack and defense, Zhang, as a famous military commentator in China, often makes amazing remarks. This veteran, known as the "Director of the Bureau of War and Neglect", often makes some amazing remarks on TV programs. Once on the show, when asked how to prevent American submarines from entering the offshore of China, "Zhang Juzuo" said that there are farmers planting kelp or fishermen fishing in the offshore of China, so the offshore environment is complicated and there will be many fishing nets and other facilities nearby.

Niu Chao, an American fisherman, actually fished out the American nuclear submarine 20 16-04-24 with a fishing net.

It is not uncommon for warships to be entangled in fishing nets by mistake, which shows that it is not torpedo missiles that can threaten warships. Recently, a picture of a submarine entangled in a fishing net became popular on the Internet. In the picture, an American nuclear submarine hangs a fishing net and is forced to stop. Although at first glance, the submarine was pulled out by the fishing boat, in fact, the 10,000-ton nuclear submarine is also a great threat to the small fishing boat.

The fishermen actually "fished out" the American submarine as soon as they cast their nets.

20 16-04-24 9: 00 am

Zhang Zeng pointed out that the large-scale cultivation of kelp along the coast of China is not conducive to the activities of American nuclear submarines. This is not a bluff at all. Recently, a picture of a submarine entangled in a fishing net became popular on the Internet. In the picture, an American nuclear submarine hangs a fishing net and is forced to stop. Although at first glance, the fishing boat pulled the submarine out, in fact, the 10,000-ton nuclear submarine is also a great threat to the small fishing boat, which may directly pull the fishing boat over or into the water.

Earlier, a Scottish fisherman claimed to have met a Russian submarine at sea. The submarine that was diving at that time hung on the fishing net and almost dragged the fishing boat into the water. Fishermen can only cut their nets, and their expensive fishing gear and catch are gone. Afterwards, the fisherman asked the military. The military said that the submarine was not from NATO. The military also knew that there were foreign submarines operating there at that time, but the warships went and didn't catch them. I didn't expect to be caught by fishermen.

In 20 15, another unlucky shrimper also met an unknown submarine, probably the pot of a Russian submarine. Large fishing nets use steel wires, which is a great threat to submarine propellers.

Shrimp boats are small in front of large submarines sailing at high speed, but fishing nets are deadly.