Given the question: Information: - The Bureau of International Organization Affairs (IO) is a bureau in the United States Department of State that creates and executes U.S. policy in the United Nations and other international organizations. It is headed by the Assistant Secretary of State for International Organization Affairs. The IO is charged with developing and implementing the policies of the U.S. government with respect to the United Nations and its affiliated agencies, as well as within certain other international organizations. The Bureau of International Organization Affairs was created in order to strengthen the United States involvement in important international relations. - The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. It once reached elevations similar to those of the Alps and the Rocky Mountains before naturally occurring erosion. The Appalachian chain is a barrier to east-west travel, as it forms a series of alternating ridgelines and valleys oriented in opposition to most roads running east or west. - The United States Department of State (DOS), often referred to as the State Department, is the United States federal executive department that advises the President and leads the country in foreign policy issues. Equivalent to the foreign ministry of other countries, the State Department is responsible for the international relations of the United States, negotiates treaties and agreements with foreign entities, and represents the United States at the United Nations. The Department was created in 1789 and was the first executive department established. - David McK . Key ( February 4 , 1900 -- July 15 , 1988 ) of Tennessee , a descendant of David M. Key , served as United States Ambassador to Burma from March 1950 to October 1951 , and later as the Assistant Secretary of State for International Organization Affairs of the State Department . - Tennessee ("Tanasi") is a state located in the southeastern region of the United States. Tennessee is the 36th largest and the 16th most populous of the 50 United States. Tennessee is bordered by Kentucky and Virginia to the north, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, and Arkansas and Missouri to the west. The Appalachian Mountains dominate the eastern part of the state, and the Mississippi River forms the state's western border. Tennessee's capital and second largest city is Nashville, which has a population of 654,610. Memphis is the state's largest city, with a population of 655,770. - The United Nations (UN) is an intergovernmental organization to promote international co-operation. A replacement for the ineffective League of Nations, the organization was established on 24 October 1945 after World War II in order to prevent another such conflict. At its founding, the UN had 51 member states; there are now 193. The headquarters of the United Nations is in Manhattan, New York City, and experiences extraterritoriality. Further main offices are situated in Geneva, Nairobi, and Vienna. The organization is financed by assessed and voluntary contributions from its member states. Its objectives include maintaining international peace and security, promoting human rights, fostering social and economic development, protecting the environment, and providing humanitarian aid in cases of famine, natural disaster, and armed conflict. - Tracey Ann Jacobson (born 1965) is an American diplomat and a former United States Ambassador to Turkmenistan, Tajikistan, and Kosovo. - In the United States, the title of federal judge means a judge (Article Three of the United States Constitution) appointed by the President of the United States and confirmed by the United States Senate pursuant to the Appointments Clause in Article II of the United States Constitution. - The Assistant Secretary of State for International Organization Affairs is the head of the Bureau of International Organization Affairs within the United States Department of State that creates and executes policy in international organizations such as the United Nations. The U.S. Department of State created the position of Assistant Secretary of State for United Nations Affairs in February 1949, using one of the six Assistant secretary positions originally authorized by Congress in 1944. On August 25, 1954, a Department administrative action changed the incumbent's designation to Assistant Secretary of State for International Organization Affairs. The current Acting Assistant Secretary is Tracey Ann Jacobson. - The Mississippi River is the chief river of the largest drainage system on the North American continent. Flowing entirely in the United States (although its drainage basin reaches into Canada), it rises in northern Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 31 U.S. states and 2 Canadian provinces between the Rocky and Appalachian Mountains. The Mississippi ranks as the fourth longest and fifteenth largest river in the world by discharge. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. - David McKendree Key (January 27, 1824 February 3, 1900) was a Democratic U.S. Senator from Tennessee from 1875 to 1877 as well as the U.S. Postmaster General under President Hayes, and a United States federal judge. What is the relationship between 'david mck. key' and 'diplomat'?
The answer is:
occupation