US
Kim Jong Un is unpopular in China because of North Korea's repeated nuclear and missile tests
North Korea regularly accuses US and South Korea of preparing for war by holding annual joint military exercises
Expanding BBC to launch news service for North Koreans
Obama has repeatedly stated that the United States will never accept North Korean as a nuclear-armed state
The latest Musudan test came with the United States and China still thrashing out a new sanctions
Kung Sok-Ung had been removed from his post and expelled from Pyongyang to a rural farming area with his family
The latest satellite imagery analysis noted increased activity at the North's Sohae satellite launch station
North Korea last month fired three missiles that flew about 1,000 km (600 miles)
North Korea's nuclear and missiles tests have been condemned worldwide
The September 9 blast was in defiance of UN sanctions that were tightened in March