(April 2012). A proof test is a form of stress test to demonstrate the fitness of a load-bearing structure, or rescue strop. An individual proof test may apply only to the unit tested, or to its design in general for mass-produced items. Such a structure is often subjected to loads above that expected in actual use, demonstrating safety and design margin.
The United States and North Korea do not have diplomatic relations. The Swedish Embassy in North Korea is the U.S. protecting power and provides limited consular services to U.S. citizens. The U.S. Special Representative for North Korea Policy is Ambassador Joseph Yun. The U.S. Special Envoy for North Korean Human Rights Issues is Vacant.
North Korea is an isolated, impoverished, impulsive rogue nuclear state ruled by a family that has built one of the most terrifying personality cults the world has ever seen. As result, Pyongyang doesn't have a lot of friends. The one country that North Korea can depend on is China. Beijing provides Pyongyang with much of its food and weapons â and is bound by treaty to support the North in the event of war with South Korea. China and North Korea have a reputation for being closely aligned, both militarily and ideologically.