Me neither. Looks like he over-escaped the URL somehow ('%2520' is escaping the '%' in what should be the space-separated URL's '%20'), and that's why you're getting that access-denied error (because the over-escaped URL doesn't correspond to an existing file). If I go to https://www.jag.navy.mil/library/investigations/IWO%20JIMA%2... directly, or try out a IA version like https://web.archive.org/web/20110716095835/https://www.jag.n... then it works.