A hostile work environment based on harassment can also give rise to employer liability. There is a good summary of the harassment laws on the U.S. Equal Employment Opportunity Commission website at:
If the harassment is based on any of the so-called "suspect classifications", it is unlawful. That would include sex, so if you are being harassed because you are a male, you would come within the Title VII protections. Take a look at the webpage section entitled "Employer Liability for Harassment" in particular.
There is also a link on the right side of the page for information on filing a discrimination claim. The EEOC will conduct an investigation
. I think it is worth checking into this first and seeing what assistance the EEOC can provide. You can always pursue civil remedies at a later time (though you might still want to contact a lawyer soon just to get more specific information on the possibility of filing a civil claim).
I salute you for your years of service and, in particular, for earning a Purple Heart, the one medal none of us ever wanted!
I will contact you via email re challenge coins.