The close relationship between Americans and Canadians has long been the envy of other countries. We share the longest undefended border in the world and have enjoyed the fruits of a partnership benefiting both countries for over 150 years. Ours is a bond forged in battle. …For generations, our soldiers have died, cried and celebrated victory beside each other. …In your darkest moments, Canadians have been by your side. …Canadians know that no matter what some politicians say, our American neighbors will be there for us in our time of need, too. …President Donald Trump’s ongoing threat of tariffs against Canada can only be described as an exercise in mutually assured destruction. …Tariffs on top of softwood lumber duties increase the cost of wood for your homes. A tax on our food exports means more expensive groceries for families in your country. …We can prosper side by side if we respect our differences and work together in a spirit of mutual trust and cooperation. The way we Americans and Canadians always have.