July 4th celebrations can trigger PTSD Episodes for some militaty veterans. Here are ways to help.

You can also take steps to support your guests who may be impacted by explosives:

Notify them ahead of time if fireworks are a part of the celebration. Set a specific time for (or announce the start of) fireworks so guests can plan for their own needs Create space so that guests can be in small groups rather than a large crowd Show compassion—you can choose the celebration you want and at the same time you can respect the decisions others make for self-care. Consider using alternativs to fireworks, like sparklers or light shows or simply center your celebration around themes other than loud fireworks

Resources:
National Center for PTSD
Everyday health
U.S. Department of Veterans Affairs