Maybe Mick Lowe was thinking of Ruby (Don't Take Your Love to Town), rather than Lucille. Ruby is about a crippled veteran of "that...Asian war, but I was proud to go and do my patriotic chore" who would resort to violence if he could to stop his wife from partying in town: "If I could move I'd get my gun and put her in the ground," hardly an anti-Vietnam war statement. If you want an anti-Vietnam-war statement in country music, you have to go to "It's Hard to Be a Christian Soldier" by Bobby Bare, who also wrote "The Winner" (it's on his album "The Winner, and Other Losers"). Kris Kristopherson (and, I think,Joan Baez) recorded "Christian Soldier."