It wasn't the war effort that motivated the US Army to build their own fire apparatus, it was cost savings and stadardization. Here's a link to a site that has more info on the Fort Holabird, MD built USA fire apparatus:
[url="http://www.firetrucks-atwar.com/G.html"]http://www.firetrucks-atwar.com/G.html[/url]
[url="http://www.firetrucks-atwar.com/G.html"]http://www.firetrucks-atwar.com/G.html[/url]