(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.
The Soviets assisted in the establishment of a communist regime in North Korea, while the United States became the main source of financial and military support for South Korea. On June 25, 1950, North Korean forces surprised the South Korean army (and the small U.S. force stationed in the country), and quickly headed toward the capital city of Seoul. The United States responded by pushing a resolution through the U.N.âs Security Council calling for military assistance to South Korea.