Think those are US Marines.
http://www.alamy.com/stock-photo-us...-war-1951-courtesy-csu-archives-50012962.html
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and took out more Luftwaffe aircraft than the RAF too..The LRDG and SAS people were very much of the old English school of creative ungentlemanly warfare. Looked like pirates, fought like partisans, took their lumps like gentlemen, and killed a lot of people who apparently needed it.
Nope, thats a TOW tube on an M113, late 60s to early 80s