ˌtour of ˈduty BrE AmE noun ( plural tours of duty ) [countable]
a period of time when you are working in a particular place or job, especially abroad while you are in the army etc
ˌtour of ˈduty BrE AmE noun ( plural tours of duty ) [countable]
a period of time when you are working in a particular place or job, especially abroad while you are in the army etc
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012