Denmark abruptly announced on April 4 that it would block the sea and air space near the Great Belt Strait, and according to the US "War Zone" website, Denmark blocked the sea and air space because of an accident on a Danish Navy missile frigate named Niels Juul. On the same day, the Danish Navy tested the weapon system of the Niels Juul, but accidentally started the launch procedure of the Harpoon anti-ship missile, so Denmark immediately activated the emergency disposal procedure and announced the closure of the relevant sea and air space. Harpoon is a subsonic anti-ship missile developed by the United States, which has been purchased and equipped by many countries and regions. There are several versions of the Harpoon anti-ship missile, capable of being projected through several platforms.
The Niels Yule is a new missile frigate of the Danish Navy, belonging to the Ivor Whitfeldt class, which has a displacement of more than 6,500 tons, which has already exceeded the tonnage of many missile destroyers if you look at the displacement. However, the Ivor Whitfeldt-class missile frigate is in constant trouble, not only the unexpected activation procedure of the Harpoon anti-ship missile on April 4, but also the radar and air defense missile systems directly failed when the Ivor Whitfeldt was on an escort mission in the Red Sea, and the ship was preparing to intercept the missiles of the Houthis in Yemen, so it almost had an accident.
The port where the Nils Yule is located is densely trafficked by sea and air, as well as bridges, so if the Harpoon anti-ship missile is launched directly, there is a high probability of serious damage. Judging from the unexpected start of the Harpoon missile during the detection of the program, the American myth has been shattered again, and the US weapon is obviously not omnipotent, and there have been accidents one after another in the recent stage of the US-made weapons and equipment; in fact, on the same day that the Danish Navy's Harpoon anti-ship missile was accidentally started, a US Air Force F-35A fighter suddenly had a flat tire when it landed, and in fact the US Army had another Apache helicopter gunship crash on the same day, and the US military has recently had several crashes of the Apache helicopter gunship.
The Danish Navy has not yet given a specific reason for the unexpected activation of the Harpoon anti-ship missile, because the Harpoon carried by the Nils Yule is a live ammunition, and there is a risk of explosion after launch, and the consequences will be very serious once it hits the ship. Previously, there had been an accidental activation of an anti-ship missile on Taiwan Island and a fishing boat was also hit. Normally, after the launch of the anti-ship missile, it will automatically search for the target after flying a certain distance, so the anti-ship missile is very risky once it is launched, but the Danish Navy "downplayed" the accident of the day, claiming that there was no risk of the warhead exploding.
Taiwan also buys Harpoon anti-ship missiles from the United States, and in addition to the sea-based version, there are also air-launched versions and land-based deployed models. At the same time, Taiwan Island is equipped with a large number of self-developed Hsiungfeng-2 and Hsiungfeng-3 series anti-ship missiles, and the previous accident was a Hsiungfeng series of anti-ship missiles, which was also triggered by an accident and caused a catastrophe. Recently, Taiwan has frequently publicly displayed the Hsiungfeng-2 and Hsiungfeng-3 series of anti-ship missiles, and this is an attempt to put pressure on the PLA by openly deploying them in the eastern park, thus highlighting the strategy of the DPP authorities on Taiwan Island to "resist reunification by force."