Question: Information:  - The United States Ambassador to Vietnam (Vietnamese: "i s Hoa K ti Vit Nam") is the chief American diplomat to the Socialist Republic of Vietnam. After the First Indochina War and the defeat of the French domination over Vietnam, the country was split into North and South Vietnam at the Geneva Conference of 1954. The United States did not recognize North Vietnam and thus had no diplomatic relations with the country. After the reunification of Vietnam in 1976, there followed a period of 20 years in which the United States had no diplomatic relations with Vietnam.  - Michael Walter Michalak ( born 1946 ) is the former United States Ambassador to Vietnam . He currently serves as Senior Vice President for the US - ASEAN Business Council Born in Detroit , Michigan , Mr. Michalak received a Bachelor of Science degree from Oakland University in Rochester , Michigan , and Master of Science degree in Physics from The Catholic University of America in Washington , D.C. He received a second master 's degree in Public Administration from the John F. Kennedy School of Government at Harvard University in Cambridge , Massachusetts . He was the U.S. Senior Official to APEC from November 2005 until his appointment as Ambassador to Vietnam . Prior to the APEC responsibility he was Deputy Chief of Mission to the US Embassy in Tokyo . In February 2011 he assumed the position of Senior Advisor to the Private Sector Host Committee for APEC 2011 . Michalak has worked for the U.S. Department of State for over 30 years and is the recipient of a group award for valor for his actions in time of crisis when the U.S. Embassy in Islamabad was burned down .  - The First Indochina War (generally known as the Indochina War in France, and as the Anti-French Resistance War in contemporary Vietnam) began in French Indochina on 19 December 1946 and lasted until 1 August 1954. Fighting between French forces and their Viet Minh opponents in the South dated from September 1945. The conflict pitted a range of forces, including the French Union's French Far East Expeditionary Corps, led by France and supported by Emperor Bo i's Vietnamese National Army against the Viet Minh, led by Ho Chi Minh and its People's Army of Vietnam led by Vo Nguyen Giap. Most of the fighting took place in Tonkin in Northern Vietnam, although the conflict engulfed the entire country and also extended into the neighboring French Indochina protectorates of Laos and Cambodia.    Given the information above, choose from the list below the object entity that exhibits the relation 'occupation' with the subject 'michael w. michalak'.  Choices: - ambassador  - diplomat  - french resistance  - socialist
Answer:
diplomat