South Korea is expected to hold one of its biggest celebrations ever marking 70 years anniversary of the ruling Workers’ Party.
A cavalcade of armoured vehicles and ballistic missiles is expected to rumble through the capital Pyongyang accompanied by marching troops.
North Korea’s supreme leader Kim Jong-un will preside over the ceremony, but no world leaders will be attending.
When it announced plans for the anniversary earlier this year, the government spoke of “cutting-edge” weaponry suitable for modern warfare.
It is not known if Kim Jong-un – grandson of North Korea’s first leader, Kim Il-sung – will speak at any of the day’s events, although the anniversary is expected to send a signal of defiance, particularly to South Korea and the United States.