The US Marine Corps tests the "Nemesis" shore-to-ship missile system

2021-09-15: [Original Article Link].

A few days ago, the US Navy and Marine Corps held joint exercises in the waters near Hawaii. During the period, the U.S. Marine Corps used the "Nemesis" shore-to-ship missile system to launch NSM anti-ship missiles to strike water targets. This is the "first show" of this type of combat system in joint exercises, and it will exist as a distributed maritime combat node of the US military in the future. The shore-to-ship missile is a missile system launched from the shore to attack enemy surface ships, and it is also an important part of the modern coastal defense system. Compared with ship-to-ship missiles and air-to-ship missiles, shore-to-ship missile systems are often deployed in coastal areas, guarding important waterways, fjords and Haikou channels, and giving an important blow to the enemy at the last minute. Unlike most countries in the world that attached importance to the development of shore-to-ship missile systems, after the Second World War, the United States pushed its maritime defense line to the deep ocean and did not pay much attention to shore-to-ship missile systems, it was not until the 1980s that a shore-to-ship missile system was launched on the basis of the "Harpoon" anti-ship missile, but it was mainly used for export, and the US military did not have equipment. Since the 21st century, with the change of US military strategy, the US Marine Corps has begun to participate more in maritime operations. In November 2017, the U.S. Marine Corps officially released an information inquiry, seeking "shore-based anti-ship missiles that can be quickly procured, which can be deployed in coastal areas, precision strikes against surface ship targets at least about 130km away". The consultation letter requires the weapon to "have high mobility and mission adaptability, and can integrate with the fire strike system, command and control system and surveillance and reconnaissance system of the United States and its partner countries". The full name of the project is "Marine Corps Expedition Anti-Ship System", code-named "Nemesis". At the end of 2020, the "Nemesis" shore-to-ship missile system debuted, using Raytheon's NSM anti-ship missile with Oshkash's unmanned launch vehicle. April this year the system in California coast first launch test. First, the entire system is greatly simplified. The traditional shore-to-ship missile system is equipped with independent search, sighting, accusation and launch units. It is huge and has only limited maneuverability and is difficult to deploy remotely and quickly. The "Nemesis" shore-to-ship missile system is much simpler. The system consists of a command and control vehicle and a missile launch vehicle. The vehicle is improved on the basis of a joint light combat vehicle. The launch vehicle has also been inhuman modification, which further reduces the total weight of the body, it can automatically load, enter or withdraw from the launch base. Second, the performance of anti-ship missiles is strong. NSM is a medium-sized anti-ship missile developed by the Norwegian Cornsmber company, with a length of 3.95 meters, a full weight of 400kg, a maximum range of about 185 kilometers, a cruising speed of 0.95 Mach, with a 125kg warhead and programmable fuze, it can effectively damage large and medium-sized surface ships. Due to the use of many stealth designs, including the air inlet located on the upper part of the projectile, the bomb has a strong hidden penetration capability. The third is to use the network to achieve a blow. The "Nemesis" shore-to-ship missile system is not equipped with sea search and target indication radar, but uses the data link in the combat network to complete the tracking and strike of the target. After the missile is launched, the track is corrected through the data link, and the flight track is returned, so that the operator can intervene in the strike process when necessary, which improves the combat flexibility. A report by the U.S. Naval Research Institute shows that in recent years, as the U.S. Navy has begun a strategic transformation, the "frontier existence" emphasized in the past "from sea to land", it has gradually changed to improve the ability to carry out battle-level operations with powerful enemies at sea in a confrontational environment. To this end, the United States Navy and Marine Corps have changed their past practice of focusing on the deployment of fixed force formations (e. G., aircraft carrier strike groups, expeditionary strike groups) in key locations around the world, turning to the adoption of a variable force marshalling structure dominated by distributed maritime operations, the deployment of a large number of ships and aircraft, and the flexible grouping and sharing of data with other new types of manned/unmanned equipment in the combat area, form a comprehensive battlefield network across the service arms. Under this network, the US military offensive units are scattered and deployed, which can not only effectively attack powerful enemies, but also be less vulnerable to fire attacks. The "Nemesis" shore-to-ship missile system is a network node weapon developed to implement this combat idea. The system can be flexibly deployed on the frontier islands through a variety of air and sea vehicles, obtain target data from network nodes such as the Coast Observatory System, manned/unmanned aerial vehicles and surface ships, and use remote control to launch missiles, it plays a role in blocking the island chain and supporting the battles of the battles. Conversely, how to deal with this missile system? The NSM anti-ship missile has a limited range and can operate outside its range to avoid its strike threat. At the same time, enhancing the ability to detect and intercept stealth targets is also an effective means of combating such missiles. In addition, this threat can also be eliminated by destroying the data link between the nodes of the distributed maritime combat system and hard killing of unmanned shore-ship missile launchers.

Note: This is auto-translated version of an article meant for Chinese audience. A mature and nuanced reading is suggested.