(Bloomberg) -- North Korea’s new arsenal of ballistic missiles is set for their first real-world test on the battlefield in Ukraine. The North Korean missiles sent so far are similar in size and flight dynamics to Russia’s Iskander series, weapons experts have said. The use of the North Korean missiles appears to be quite new, and data is likely sparse on their performance. The US determined Russia probably used North Korean missiles in that attack. Now he’ll see if that includes the newer North Korean varieties as well.