Why are these US soldiers marching in Beirut, Lebanon, in 1958, holding the Confederate battle flag?

by HistoryLord

https://1.bp.blogspot.com/-TDZVRuOcH80/TjnPsppLZNI/AAAAAAAAAIU/OvOy8G_OuUI/s1600/marines1958wy2.jpg

fuzzcore666

This has been answered here.

Edit: by u/jimthesoundman and u/DBHT14