Just a few songs for your consideration:
How 'bout Peter, Paul and Mary's version of Pete Seger's "If I Had a Hammer". It's both anti-war and pro-labor.
If we're still doing anti-war songs here are song great ones:
My favorite anti-war song of all time. Creedence Clearwater Revival:
Marvin Gaye, "What's Goin' On?"
Jimmy Cliff, "Vietnam".
I adore your show.