Here is a timeline of the history of operations from 1939 to 2015. In 1939s, the first study with the objective of finding optimal policies in a military detention system. In the 1940s, the first working group led by P.MS created for the study of the air defense system governed by radar. In the 1990s, Integration of a national network of spare parts inventory to improve service support. Learn more details from this timeline, or try to make yours with ease.