North Korea stands ready to fight any war with the United States and its armed forces are now so strong that the country has become a global military power, leader Kim Jong Un said at major anniversary event on Saturday.

But despite the strident tone of his speech, North Korea refrained from carrying out anticipated missile tests to coincide with the event, held to commemorate the 70th anniversary of the founding of the Worker's Party of Korea (WPK), or a satellite launch that many observers had expected earlier in the year.