President of State Affairs Kim Jong Un guides ground jet test of solid-fuel engine for new-type intermediate-range hypersonic missilePresident of State Affairs Kim Jong Un guides ground jet test of solid-fuel engine for new-type intermediate-range hypersonic missilePresident of State Affairs Kim Jong Un guides ground jet test of solid-fuel engine for new-type intermediate-range hypersonic missilePresident of State Affairs Kim Jong Un guides ground jet test of solid-fuel engine for new-type intermediate-range hypersonic missile