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( Compare to escalator, a device that lifts something to a higher level. While the OED records escalatory first used in that work, escalation is recorded as early as 1938. — “Escalation - Wikipedia, the free encyclopedia”, en.wikipedia.org
This article is part of the WikiProject Iraq, an effort to build a comprehensive and detailed guide to Iraq on Wikipedia. The non-legally binding protocols were designed as a deconfliction and de-escalatory measure in order to build confidence between the Kuwaiti Navy and the Iraqi Navy in. — “Talk:Khawr Abd Allah - Wikipedia, the free encyclopedia”, en.wikipedia.org
The info on him coining the word escalation is wrong although he did invent escalatory in On Escalation. The first cite in the OED is from the Kansas City Star 29 March 1938 and another quote is from his Thinking about Unthinkable written 3 years before the book he supposedly coined the word. — “Talk:Herman Kahn - Wikipedia, the free encyclopedia”, en.wikipedia.org