You can read the article here . Very quick summary from me. The Army as the small arms proponent for all the services, is looking at a 9mm replacement. Most of the M9's are 25 plus years old, and many in the front line units are showing wear and tear and generally are not reassuring to the troops. A loss of faith in the pistol more than anything. Anyhoo they are looking at ,357 Sig, .40 S&W, .45 ACP and possibly other callibers. This is always a "Sticky Wicket" as they are trying to develop a "One size fits all" gun. First there are physical differences in users. I do not know which service has the smallest active duty person or the largest, but I expect there is a huge difference in physical measurements between them. Then there is the primary tasks. The Coast Guard is primarily a law enforcement mission. they board ships with pitching, wet decks, seach some very confined spaces. They might prefer a .380 for that job! Anyway very interesting, they are meeting July 27.