There is little cross-fertilization of weapons technology between the rival air, ground and sea elements. This is why the joint Special Operations Command fields the best weaponry , despite having a relatively small budget. I have written about new weapons for over a decade, with limited success. Even when ideas are accepted, there is always a funding problem. There are billions of dollars available, but all of these funds go to well-established corporations with PACs, lobbyists, and retired Generals on staff, and the support of Generals in the Pentagon who have been promised jobs.
Major advances are possible with simple modifications to existing weapons.
With the encouragement of Mike Sparks , I assembled my ideas for 21st Century weapons and he organized them on this website. This material is available for paper publication. I left this geocities website running since its free and has great stuff, but I don't add new articles to it anymore. The only thing harder than getting a new idea into the military mind is to get an old one out.