== Use of Slang == 

 "The Leathernecks adapted to street fighting, which was a novelty to them" 

 Having clicked on the link I now know "leatherneck" is a US military slang for US Marines. I'm not sure it is a term that should be used in an article though as it's not going to be familiar to a lot of readers and makes the article sound like it is written from the US perspective.