@misc{ enwiki:1215770554, author = "{Wikipedia contributors}", title = "Guard, Tomb of the Unknown Soldier Identification Badge --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Guard,_Tomb_of_the_Unknown_Soldier_Identification_Badge&oldid=1215770554", note = "[Online; accessed 9-July-2024]" }
url
(\usepackage{url}
somewhere in the preamble), which tends to give much more nicely formatted web addresses, the following may be preferred:
@misc{ enwiki:1215770554, author = "{Wikipedia contributors}", title = "Guard, Tomb of the Unknown Soldier Identification Badge --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Guard,_Tomb_of_the_Unknown_Soldier_Identification_Badge&oldid=1215770554}", note = "[Online; accessed 9-July-2024]" }