Intermediate-range ballistic missiles are one level ahead of medium-range missiles. That means their maximum range reaches 3,000-5,500km, a step behind intercontinental missiles. Let's see the four newest missiles of that kind in North Korea.
KN-08
The North Korean missiles are also called Rodong-B, No-Dong-C or Hwasong-13. The missile is a new development that's why we don't know for sure if it's an intermediate-range or an intercontinental missile. Its range is probably up to 6,000km and has a similar size to the Russian Topol-M. Although, some sources state that the project isn't real, and it's only an attempt to confuse West spy agencies. However, it was announced that the missile was tested successfully in 2017.
Hwasong 12
We continue with a more popular series, the Hwasong family (the word means Mars). For this missile we know a bit more things, as its length (16.5m) and when it probably entered service (2017). In 2017, six tests were performed on the Hwasong 12, while the first three were unsuccessful. The missile was seen in a military parade in 2017.
Hwasong 10
Mars 10 is also known as BM-25 or Musuda. News about the missiles has been public for years, although we aren't sure about its exact development stage. It was seen in public in 2010 in a military parade in the country. At some moment, North Korea run 16 test flights at the same time. Although, these tests were probably fake as the missile couldn't be launched successfully until 2016. On some occasions, Hwasong 10 exploded right after the launch!
Hwasong 8
The newer missile on the list, Hwasong 8 was tested successfully in 2021 according to announcements from the country. The missile features a hypersonic glide vehicle, and it seems like it's operational since 2019. But, many doubt the reliability of the weapon as its exact specifications and capabilities are unknown.