In the aftermath of the hypersonic missile race of the United States, China, and Russia, the East Asian hermit country North Korea has launched the biggest missile tests since 2017 to show it is still a threat to its rival countries.

In case you haven’t noticed, Russia, China, and North Korea all seem to be trying to get the attention of the Biden administration lately.

Led by North Korean leader Kim Jong Un, the intermediate-range ballistic missile (IRBM) named Hwasong-12, which was first revealed in 2017, had range upgrades since its last test in September 2017. The missile test was highly controversial as it flew over Hokkaido, Japan, with a total distance traveled of 3,700km.

This recent test, which launched from Jagang, North Korea, at 7:52 am local time, was said to be using the highest angle launch system of the regime, taking an unusual trajectory of 1,200 miles, almost twice the apogee when compared to 2017’s test of only 770 km. It landed 800 km, off Japan’s coastline.

The missile itself, the Hwasong-12, is not a new IRBM. It was developed nearly four years ago, featuring a single main engine with four vernier thrusters to have more control over maneuverability, stability, and altitude control. The missile is estimated to have a maximum range of 3,700km with a 650kg payload. Its more powerful brother, the Hwasong-15, has been said to be capable of reaching the United States mainland, having a range of over 13,000 km with a 1,000kg payload.