'To what extent do our economic needs and interests trump principle?' Letters to the editor for June 25

Open this photo in gallery: China is Canada's second-largest trading partner after the U.S. It is also the second-largest destination for B.C. exports.DARRYL DYCK/The Canadian Press Deterrence theory Re "As allies abandon our namesake land mine ban, Canada must defend it" (Opinion, June 23): Canada should indeed make clear that we expect Poland, Latvia, Lithuania, Estonia and Finland to stay within the Ottawa Convention banning land mines. We should not keep our troops in Latvia if that country reneges on its commitment. Opposing Russian aggression is important, but we must not abandon our own values in doing so. Tom MacDonald…