North Korea’s latest launch was a big, new intercontinental ballistic missile (ICBM), state media reported on Friday, in a test leader Kim Jong Un said was designed to demonstrate the might of its nuclear force and deter any U.S. military moves.

The Thursday launch was the first full ICBM test by nuclear-armed North Korea since 2017. Flight data indicated the missile flew higher and longer than any of North Korea’s previous tests before crashing into the sea west of Japan.

Called the Hwasong-17, the ICBM would be the largest liquid-fuelled missile ever launched by any country from a road-mobile launcher, analysts say.