My Mom flew a flag in our window in the 70s back in Chicago. I don't think folks who had family in the war cared what protestors thought, at least not in our area, but the flags were there for the soldiers.
Fly it proud mom.
May God keep them all safe.
When hes ready to come home, goto
www.patriotguard.org and let them know and get some folks there to welcome them home. Theres a lot of vets that know what its like to not have a welcome home that would be proud to be invited to do that. You can e-mail me with any questions.