if it was my call, i'd aggressively apply tariffs and sanctions until they release none of it, nw territories, yukon, alberta, sasquatchia, and manitoba to us statehood, most of them are 1st nations and based rural people, they're okay.  then i'd carpet bomb everything else and occupy, expelling any survivors to cuba, i would only spare quebec who be given the entire east as a french colony, i would make problems with them later in order to justify liberating france from kikes and denegrofying it. then i'd expel the north american french back to france to rebreed their race. god i hate canadians.
United States