Kim Jong Un showed off North Korea’s latest weapons to Russia’s Defence Minister Sergei Shoigu on Wednesday.
Pyongyang invited the Russian delegation led by Mr Shoigu, as well as Chinese officials.
They will attend Pyongyang’s celebrations of the 70th anniversary of the Korean War armistice, marked typically by massive military parades.
The weapons on display included the Hwasong intercontinental ballistic missile (ICBM).
Successfully tested in April, it is believed to be the country’s first ICBM to use solid propellants, which makes it quicker to launch than liquid-fuel ones.