Kinetic military action
Kinetic military action is a euphemism for military action involving active warfare, usually including lethal force. "Kinetic" was used as a retronymic euphemism for military action in Bush at War, a 2002 book by Bob Woodward. Defense Secretary Donald Rumsfeld used the words "kinetic" and "non-kinetic" often. The phrase is now also commonly used as a contrast to cyber warfare.
I think what we are doing is enforcing a resolution that has a very clear set of goals, which is protecting the Libyan people, averting a humanitarian crisis, and setting up a no-fly zone... Obviously that involves kinetic military action, particularly on the front end.
U.S. Department of Defense used "kinetic operations" on a webpage about "Operation Inherent Resolve". It contained an interactive graphic titled "AIRSTRIKES IN IRAQ AND SYRIA" and captioned "... operations related to ISIL since kinetic operations started on Aug. 8, 2014 ...".
February 11, 2015 President Obama used "kinetic strike" in a letter to Congress. He wanted, among other things, Congress to "authorize the use of U.S. forces [against ISIL] in ... [ground] missions to enable kinetic strikes". The phrase was not used in the draft resolution proposed to Congress.
December 2, 2015 Secretary of State John Kerry spoke after attending a series of NATO meetings in Brussels, “There are various ways in which countries can contribute; they don’t necessarily have to be troops, engaged in kinetic action. There are medical facilities, there are other assets that can be deployed, there is intelligence gathering.” 
- Noah, Timothy (November 20, 2002). "Birth of a Washington Word". Slate. ISSN 1091-2339. Retrieved October 30, 2017.
- "Cyberwar: Breaching the Kinetic Barrier"
- "A Brief Summary of Cyber Warfare"
- York, Byron, "White House: Libya Fight is Not War, It's 'Kinetic Military Action', Fox Nation, March 23, 2011. Retrieved May 11, 2011.
- "'Kinetic military action' is still hell", New York Post, March 26, 2011. Retrieved May 11, 2011.
- Goldberg, Jonah, "Kinetic Military Action No More", National Review, March 24, 2011. Retrieved May 11, 2011.
- "OPERATION INHERENT RESOLVE". Original publication date August 14, 2014, updated January 30, 2015. Retrieved February 11, 2015.
- "Letter from the President -- Authorization for the Use of United States Armed Forces in connection with the Islamic State of Iraq and the Levant". February 11, 2015. Retrieved February 11, 2015.
- "Joint Resolution". February 11, 2015. Retrieved February 11, 2015.