Some observers say we should not be too quick to dismiss Pyongyang's military capabilities.

Ukraine's president says the incursion is limiting the forces Moscow can deploy inside his country.

Beijing is caught between its sanctioned neighbours, whose new alliance is causing concern.

The declaration comes at a time when tensions between the Koreas are at their highest point in years.

Kim said relations between North Korea and Russia would be raised to a new level.

Mr Kim called for the site to increase its production of nuclear warheads, state media said.

The highest-ranking defector to escape North Korea in years, Ri Il Kyu has met Kim Jong Un seven times.

A photograph taken by state media shows Kim Jong Un travelling through a flooded area in a Lexus.