Whatever your feelings on war, today isn't about that. It's time to remember the men and women that have served in the past and to support those still serving today.
I don't know how to say anything else on the subject without coming of as trite or condescending so I'm just going to leave it at that.
Edit: It also appears that I've become way too anglicized as of late. While poppies are worn in the UK for Remembrance Day (today also), they're worn in the US on Memorial Day. I knew this, too. I still like my red and white poppies, they're staying.