We work directly with the military and members of my team are both military veterans and civilians trained alike. We have been doing this for 10 years. A group of people have gotten together to stop the work that we are doing and asked the State of Utah to have our uniforms taken off. Like the majority of military schools across the nation who wear the very same uniform and have their own information on them. It hasn't been a problem. The State of Utah supports what we are doing. But pressing us for support from the military in writing that we can do this. We go on bases in the same uniform and have been presented plaques for our service to the families we serve. We found out the U.S. Supreme Court even ruled a year ago that it is not illegal for civilians to wear the same uniform as a First Amendment Right. Can we be forced out of our uniforms?
I can not think of a law which would allow them to take action against you to restrain you from wearing an article of clothing merely because it resembles a military uniform. To provide you with more constructive legal advice I would need more information about who "A group of people" are and what authority they believe they have to control what your group does.
I never charge a consultation fee for military members or veterans. I will extend the same courtesy to a military / veteran support group. Feel free to call our offices to set something up if your issue is ongoing and you need further guidance.