We have fought six wars with Canada—more than we have with any other country. They are as follows:
The War of the League of Augsburg (1688-1697)
The War of the Spanish Succession (1701-1714)
The War of the Aurstian Succession (1740-1748)
The Third Silesian War (1754-1763)
The War of the American Revolution (1775-1783)
The War of 1812 (1812-1815)
However, in four of those wars, we were English and Canada was French. In the final two, Canada was English.
Your current president is doing a bang-up job turning your country into a larger version of Canada except that your closer proximity and warmer climate means that you get the added treat of ten million illegals. Any that get this far must be pretty adaptable so we don’t even bother to look for them.
As a result, we won’t invade, we’ll just wait for the inevitable suggestion of a merger.