North Korean leader Kim Jong Un supervised drills involving the firing of nuclear-capable multiple rocket launchers to show the country's ability to carry out a preemptive attack on rival South Korea.
Key Points
North Korea conducted firing drills involving nuclear-capable rocket launchers under Kim Jong Un's supervision
The drills were a response to South Korean aerial exercises and North Korea's failed spy satellite launch
South Korea condemned the drills and warned of consequences
Experts believe North Korea aims to enhance its nuclear capabilities in response to perceived U.S. military threats