Deletion of Unit run

Comment: Military units usually engage in morale-building exercise of this sort.  The doctrine of the US Marines may be found in manuals such as https://www.google.co.uk/books/edition/Marine_Physical_Readiness_Training_for_C/N1w_ndWpyVIC?hl=en this.  The rest is then a matter of ordinary editing not deletion per 
Stance: keep
Cited policy: Wikipedia:Deletion policy (WP:ATD)

Comment: Some official military website (.mil domain name instead of random sites)  refers to the term https://www.8thmarines.marines.mil/Photos/igphoto/2001526998/ 1https://www.29palms.marines.mil/Articles/Article/518741/headquarters-battalion-sergeant-major-leads-battalion-run/ 2. FM-722 also refers to unit run as one of the scheduled exercises https://www.atu.edu/rotc/docs/aprt_7-22.pdf 3, also used in http://www.citadel.edu/root/images/commandant/assistant-commandant-leadership/how-to-train-at-the-citadel-29-dec.pdf Citadel Military School. It is also briefly mentioned on https://apps.dtic.mil/dtic/tr/fulltext/u2/a259359.pdf this book. Some media (which I admit not fully reliable) also mentioned it in https://vocal.media/serve/marine-corps-ball-traditions-every-recruit-should-know here and https://www.marinecorpstimes.com/news/your-marine-corps/2019/05/14/marine-sergeant-dies-a-few-days-after-collapsing-during-a-unit-run-in-north-carolina/ here. A Twitter from official military account also have https://twitter.com/1stmaw_marines/status/1059448236702744577?lang=en used the term. I think it may weakly pass , but it is far from not used in any sources
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)