> I'm curious the reason why it was ever held in the US and Canada
Random Educated Guess; Probably part of some show of mutual trust to cement a treaty or other agreement, made way back when allied governments could mostly trust one another to hold to such agreements somewhat reliably?
Eh I don’t think that’s a good guess. More likely is that there are just mechanical reasons to have moved some (they didn’t move all of it by the way) gold to London. Plus it’s not that much money in the grand scheme of things.
Your implication here is something akin to the Netherlands thinks the US will invade Canada - remember the Dutch moved gold from there too, or that the US will decide to seize the Netherland’s gold (again, not that much money, huge irreparable harm to the US financial system, even Europe hasn’t confiscated Russian assets) but if the US felt compelled to seize Dutch assets what makes you think such a dramatic scenario wouldn’t result in the US compelling the UK to also seize those assets?