Let's say that Trent affair led to a war between US and GB. War ended in 1862, with Union paying small reparations, and losing northern part(or all) of Maine. Confederacy is beaten by enraged Union, leading to MUCH MORE brutal Reconstruction, with former CSA under military occupation up to first part of 1880's. No butterflies fly, in Europe all went as it was OTL. Americans are feeling themselves humiliated by Wars of 1812 and 1861, and thus, in last years of XIX century secretly ally themselves with German Empire. WW1 breaks out as OTL because of certain Serbian, certain bullet, and certain archduke. On August 1914 world went into flames, with almost all countries of Europe fighting Great War. US, under TR declared war on Entente Powers... Question: Would Canucks hold on until 1917-18?