cordon
n//ˈkɔː(ɹ)dən//kordong, band, ordensband, prydnadsband, snodd, snöre, kedja
(archaic) A ribbon normally worn diagonally across the chest as a decoration or insignia of rank etc. [from Template:SAFESUBST: c.]
A line of people or things placed around an area to enclose or protect it. [from Template:SAFESUBST: c.]